diff --git a/pagure/lib/__init__.py b/pagure/lib/__init__.py
index 4ba145a..195c37f 100644
--- a/pagure/lib/__init__.py
+++ b/pagure/lib/__init__.py
@@ -2371,6 +2371,4 @@ def clean_input(text):
 def is_binary(text):
     """ Returns wether we think this text correspond to a binary file or not
     """
-    textchars = bytearray([7,8,9,10,12,13,27]) + bytearray(range(0x20, 0x100))
-    is_binary_string = lambda bytes: bool(bytes.translate(None, textchars))
-    return is_binary_string(text)
+    return '\0' in text