diff --git a/Processes/Sibyll/CMakeLists.txt b/Processes/Sibyll/CMakeLists.txt
index 31d204714dba4aa72301e97ab3f5402e1abdeb73..880ed76d5ed5c2da19b6228b39680984309f1147 100644
--- a/Processes/Sibyll/CMakeLists.txt
+++ b/Processes/Sibyll/CMakeLists.txt
@@ -1,11 +1,11 @@
 add_custom_command (
   OUTPUT  ${PROJECT_BINARY_DIR}/Processes/Sibyll/Generated.inc
   COMMAND ${PROJECT_SOURCE_DIR}/Processes/Sibyll/code_generator.py 
-          ${PROJECT_BINARY_DIR}/Framework/Particles/pythia_db.pkl
+          ${PROJECT_BINARY_DIR}/Framework/Particles/particle_db.pkl
           ${PROJECT_SOURCE_DIR}/Processes/Sibyll/sibyll_codes.dat
   DEPENDS code_generator.py
           sibyll_codes.dat          
-          ${PROJECT_BINARY_DIR}/Framework/Particles/pythia_db.pkl
+          ${PROJECT_BINARY_DIR}/Framework/Particles/particle_db.pkl
   WORKING_DIRECTORY
           ${PROJECT_BINARY_DIR}/Processes/Sibyll/
   COMMENT "Generate conversion tables for particle codes SIBYLL <-> CORSIKA"
diff --git a/Processes/Sibyll/code_generator.py b/Processes/Sibyll/code_generator.py
index 388668e1de0d5b04c8b5fa920308d20ab9982d39..e1cfcbfaf84e4d04aff4ed35b324daacf1fc66c1 100755
--- a/Processes/Sibyll/code_generator.py
+++ b/Processes/Sibyll/code_generator.py
@@ -13,16 +13,16 @@ import pickle, sys, itertools
 
 
 
-# loads the pickled pythia_db (which is an OrderedDict)
-def load_pythiadb(filename):
+# loads the pickled particle_db (which is an OrderedDict)
+def load_particledb(filename):
     with open(filename, "rb") as f:
-        pythia_db = pickle.load(f)
-    return pythia_db
+        particle_db = pickle.load(f)
+    return particle_db
 
 
 
 # 
-def read_sibyll_codes(filename, pythia_db):
+def read_sibyll_codes(filename, particle_db):
     with open(filename) as f:
         for line in f:
             line = line.strip()
@@ -30,19 +30,19 @@ def read_sibyll_codes(filename, pythia_db):
                 continue            
             identifier, sib_code, canInteractFlag, xsType = line.split()
             try:
-                pythia_db[identifier]["sibyll_code"] = int(sib_code)
-                pythia_db[identifier]["sibyll_canInteract"] = int(canInteractFlag)
-                pythia_db[identifier]["sibyll_xsType"] = int(xsType)
+                particle_db[identifier]["sibyll_code"] = int(sib_code)
+                particle_db[identifier]["sibyll_canInteract"] = int(canInteractFlag)
+                particle_db[identifier]["sibyll_xsType"] = int(xsType)
             except KeyError as e:
-                raise Exception("Identifier '{:s}' not found in pythia_db".format(identifier))
+                raise Exception("Identifier '{:s}' not found in particle_db".format(identifier))
 
 
             
 
 # generates the enum to access sibyll particles by readable names
-def generate_sibyll_enum(pythia_db):
+def generate_sibyll_enum(particle_db):
     output = "enum class SibyllCode : int8_t {\n"
-    for identifier, pData in pythia_db.items():
+    for identifier, pData in particle_db.items():
         if pData.get('sibyll_code') != None:
             output += "  {:s} = {:d},\n".format(identifier, pData['sibyll_code'])
     output += "};\n"
@@ -51,9 +51,9 @@ def generate_sibyll_enum(pythia_db):
 
 
 # generates the look-up table to convert corsika codes to sibyll codes
-def generate_corsika2sibyll(pythia_db):    
-    string = "std::array<SibyllCodeIntType, {:d}> constexpr corsika2sibyll = {{\n".format(len(pythia_db))
-    for identifier, pData in pythia_db.items():
+def generate_corsika2sibyll(particle_db):    
+    string = "std::array<SibyllCodeIntType, {:d}> constexpr corsika2sibyll = {{\n".format(len(particle_db))
+    for identifier, pData in particle_db.items():
         sibCode = pData.get("sibyll_code", 0)
         string += "  {:d}, // {:s}\n".format(sibCode, identifier if sibCode else identifier + " (not implemented in SIBYLL)")
     string += "};\n"
@@ -62,9 +62,9 @@ def generate_corsika2sibyll(pythia_db):
 
 
 # generates the look-up table to convert corsika codes to sibyll codes
-def generate_corsika2sibyll_xsType(pythia_db):    
-    string = "std::array<int, {:d}> constexpr corsika2sibyllXStype = {{\n".format(len(pythia_db))
-    for identifier, pData in pythia_db.items():
+def generate_corsika2sibyll_xsType(particle_db):    
+    string = "std::array<int, {:d}> constexpr corsika2sibyllXStype = {{\n".format(len(particle_db))
+    for identifier, pData in particle_db.items():
         sibCodeXS = pData.get("sibyll_xsType", -1)
         string += "  {:d}, // {:s}\n".format(sibCodeXS, identifier if sibCodeXS else identifier + " (not implemented in SIBYLL)")
     string += "};\n"
@@ -72,18 +72,18 @@ def generate_corsika2sibyll_xsType(pythia_db):
 
 
 # generates the look-up table to convert sibyll codes to corsika codes    
-def generate_sibyll2corsika(pythia_db) :
+def generate_sibyll2corsika(particle_db) :
     string = ""
     
     minID = 0
-    for identifier, pData in pythia_db.items() :
+    for identifier, pData in particle_db.items() :
         if 'sibyll_code' in pData:
             minID = min(minID, pData['sibyll_code'])
 
     string += "SibyllCodeIntType constexpr minSibyll = {:d};\n\n".format(minID)
 
     pDict = {}
-    for identifier, pData in pythia_db.items() :
+    for identifier, pData in particle_db.items() :
         if 'sibyll_code' in pData:
             sib_code = pData['sibyll_code'] - minID
             pDict[sib_code] = identifier
@@ -104,13 +104,13 @@ def generate_sibyll2corsika(pythia_db) :
 
 
 # generates the bitset for the flag whether Sibyll knows the particle
-def generate_known_particle(pythia_db):
-    num_particles = len(pythia_db)
+def generate_known_particle(particle_db):
+    num_particles = len(particle_db)
     num_bytes = num_particles // 32 + 1
     string = "Bitset2::bitset2<{:d}> constexpr isKnown{{ std::array<uint32_t, {:d}>{{{{\n".format(num_particles, num_bytes)
     
     numeric = 0
-    for identifier, pData in reversed(pythia_db.items()):
+    for identifier, pData in reversed(particle_db.items()):
         handledBySibyll = int("sibyll_code" in pData) & 0x1
         numeric = (numeric << 1) | handledBySibyll
     
@@ -125,14 +125,14 @@ def generate_known_particle(pythia_db):
 
 
 # generates the bitset for the flag whether Sibyll can use particle as projectile
-def generate_interacting_particle(pythia_db):
-    num_particles = len(pythia_db)
+def generate_interacting_particle(particle_db):
+    num_particles = len(particle_db)
     num_bytes = num_particles // 32 + 1
     string = "Bitset2::bitset2<{:d}> constexpr canInteract{{ std::array<uint32_t, {:d}>{{{{\n".format(num_particles, num_bytes)
     #string = "std::array<bool, {:d}> constexpr corsika2sibyll = {{\n".format(num_particles)
     
     numeric = 0    
-    for identifier, pData in reversed(pythia_db.items()):
+    for identifier, pData in reversed(particle_db.items()):
         can = 0
         if 'sibyll_canInteract' in pData:
             if pData['sibyll_canInteract'] > 0:
@@ -151,19 +151,19 @@ def generate_interacting_particle(pythia_db):
 
 if __name__ == "__main__":
     if len(sys.argv) != 3:
-        print("usage: {:s} <pythia_db.pkl> <sibyll_codes.dat>".format(sys.argv[0]), file=sys.stderr)
+        print("usage: {:s} <particle_db.pkl> <sibyll_codes.dat>".format(sys.argv[0]), file=sys.stderr)
         sys.exit(1)
         
     print("code_generator.py for SIBYLL")
     
-    pythia_db = load_pythiadb(sys.argv[1])
-    read_sibyll_codes(sys.argv[2], pythia_db)
+    particle_db = load_particledb(sys.argv[1])
+    read_sibyll_codes(sys.argv[2], particle_db)
     
     with open("Generated.inc", "w") as f:
         print("// this file is automatically generated\n// edit at your own risk!\n", file=f)
-        print(generate_sibyll_enum(pythia_db), file=f)
-        print(generate_corsika2sibyll(pythia_db), file=f)
-        print(generate_known_particle(pythia_db), file=f)
-        print(generate_sibyll2corsika(pythia_db), file=f)
-        print(generate_interacting_particle(pythia_db), file=f)
-        print(generate_corsika2sibyll_xsType(pythia_db), file=f)
+        print(generate_sibyll_enum(particle_db), file=f)
+        print(generate_corsika2sibyll(particle_db), file=f)
+        print(generate_known_particle(particle_db), file=f)
+        print(generate_sibyll2corsika(particle_db), file=f)
+        print(generate_interacting_particle(particle_db), file=f)
+        print(generate_corsika2sibyll_xsType(particle_db), file=f)