diff --git a/src/modules/epos/epos_codes.dat b/src/modules/epos/epos_codes.dat
index 9eb999ab1010e924af4cc317173f3d636ed02fdb..505790c4f5754f0b25080b393a3085a4abd79bb9 100644
--- a/src/modules/epos/epos_codes.dat
+++ b/src/modules/epos/epos_codes.dat
@@ -7,7 +7,7 @@
 Unknown                  0       0       CannotInteract
 
 # Here is the list of particles known to EPOS
-Gamma                    10      0       CannotInteract
+Photon                    10      0       CannotInteract
 Electron                 12      0       CannotInteract
 Positron                 -12     0       CannotInteract
 MuMinus			 14	 0	 CannotInteract