diff --git a/tools/sanity_checks.py b/tools/sanity_checks.py
index 33914dc114..86c2b9c041 100755
--- a/tools/sanity_checks.py
+++ b/tools/sanity_checks.py
@@ -45,6 +45,9 @@
         'glbinding-aux_features.h',
         'glbinding-aux_export.h'
     ],
+    'grpc': [
+        'compile-proto.py'
+    ],
     'gumbo-parser': [
         'tokenizer.cc',
     ],