diff --git a/corsika/detail/framework/utility/CorsikaData.inl b/corsika/detail/framework/utility/CorsikaData.inl
index e690e3e0add5dd0327681752a0f2365a6b299585..0d67b57c8e6ec4dceee0689394d3e4414c4aee44 100644
--- a/corsika/detail/framework/utility/CorsikaData.inl
+++ b/corsika/detail/framework/utility/CorsikaData.inl
@@ -12,7 +12,7 @@
 #include <stdexcept>
 #include <string>
 
-std::string corsika::CorsikaData(std::string const& key) {
+std::string corsika::corsika_data(std::string const& key) {
   if (auto const* p = std::getenv("CORSIKA_DATA"); p != nullptr) {
     auto const path = std::string(p) + "/" + key;
     return path;
diff --git a/corsika/framework/utility/CorsikaData.hpp b/corsika/framework/utility/CorsikaData.hpp
index 7db08948bd85b39ba607797acd0f71a34712b621..c1a56e7f009821989ce1635aea73c3b9d6805b54 100644
--- a/corsika/framework/utility/CorsikaData.hpp
+++ b/corsika/framework/utility/CorsikaData.hpp
@@ -14,7 +14,7 @@ namespace corsika {
   /**
    * returns the full path of the file \p filename within the CORSIKA_DATA directory
    */
-  std::string CorsikaData(std::string const& filename);
+  std::string corsika_data(std::string const& filename);
 } // namespace corsika
 
 #include <corsika/detail/framework/utility/CorsikaData.inl>
\ No newline at end of file