diff --git a/source/mkw/Patch/Patch.py b/source/mkw/Patch/Patch.py
index 6954e05..c6f30ef 100644
--- a/source/mkw/Patch/Patch.py
+++ b/source/mkw/Patch/Patch.py
@@ -16,23 +16,23 @@ class Patch:
     def __repr__(self) -> str:
         return f"<{self.__class__.__name__} {self.path}>"
 
-    def safe_eval(self, template: str, extracted_game: "ExtractedGame") -> str:
+    def safe_eval(self, template: str, **env) -> str:
         """
         Safe eval with a patch environment
-        :param extracted_game: the extracted game to patch
+        :param env: other variable that are allowed in the safe_eval
         :param template: template to evaluate
         :return: the result of the evaluation
         """
         return safe_eval(
             template,
             extra_token_map={
-                "extracted_game": "extracted_game",
-                "mod_config": "mod_config"
+                "extracted_game": "extracted_game"
+            } | {
+                key: key for key in env
             },
             env={
-                "extracted_game": extracted_game,
                 "mod_config": self.mod_config
-            },
+            } | env,
         )
 
     def install(self, extracted_game: "ExtractedGame") -> Generator[dict, None, None]:
diff --git a/source/mkw/Patch/PatchDirectory.py b/source/mkw/Patch/PatchDirectory.py
index 1c1d0c2..62203da 100644
--- a/source/mkw/Patch/PatchDirectory.py
+++ b/source/mkw/Patch/PatchDirectory.py
@@ -24,7 +24,7 @@ class PatchDirectory(PatchObject):
         """
         yield {"description": f"Patching {self}"}
 
-        if self.patch.safe_eval(self.configuration["if"], extracted_game) == "False": return
+        if self.patch.safe_eval(self.configuration["if"], extracted_game=extracted_game) == "False": return
 
         match self.configuration["mode"]:
             # if the mode is copy, then simply patch the subfile into the game with the same path
diff --git a/source/mkw/Patch/PatchFile.py b/source/mkw/Patch/PatchFile.py
index 33a45bd..892fe5c 100644
--- a/source/mkw/Patch/PatchFile.py
+++ b/source/mkw/Patch/PatchFile.py
@@ -31,7 +31,7 @@ class PatchFile(PatchObject):
         yield {"description": f"Patching {self}"}
 
         # check if the file should be patched considering the "if" configuration
-        if self.patch.safe_eval(self.configuration["if"], extracted_game) == "False": return
+        if self.patch.safe_eval(self.configuration["if"], extracted_game=extracted_game) == "False": return
 
         # check if the path to the game_subpath is inside a szs, and if yes extract it
         for szs_subpath in filter(lambda path: path.suffix == ".d",