diff --git a/include/loot/exception/undefined_group_error.h b/include/loot/exception/undefined_group_error.h
index d18f4b56..f0b63194 100644
--- a/include/loot/exception/undefined_group_error.h
+++ b/include/loot/exception/undefined_group_error.h
@@ -45,7 +45,7 @@ public:
    * Get the name of the undefined group.
    * @return A group name.
    */
-  std::string getGroupName() { return groupName_; }
+  std::string GetGroupName() { return groupName_; }
 
 private:
   const std::string groupName_;