diff --git a/android_class_shadowing_scanner/__init__.py b/android_class_shadowing_scanner/__init__.py
index fafecf5..b40efe0 100644
--- a/android_class_shadowing_scanner/__init__.py
+++ b/android_class_shadowing_scanner/__init__.py
@@ -656,6 +656,7 @@ def check_smali_platform():
             data[f"sdk_{sdk_v}_diff_smalli"] = list(sdk_diff_smalli)
             data[f"platform_{sdk_v}_diff_smalli"] = list(plat_diff_smalli)
 
+        dist_dup_classes = set()
         for cl in data["duplicated_classes"]:
             cl_f = cl.removesuffix(";").removeprefix("L") + ".smali"
             smali = None