diff --git a/FilesCheck.py b/FilesCheck.py
index 112a9ec..b3465ca 100644
--- a/FilesCheck.py
+++ b/FilesCheck.py
@@ -323,7 +323,7 @@ _python_magic_values = {
     '3.2': 3180,
     '3.3': 3230,
     '3.4': 3310,
-    '3.5': 3350,
+    '3.5': 3351,  # 3350 for < 3.5.2
     '3.6': 3379,
 }