diff --git a/pytype.conf b/pytype.conf
index 8feade9c9..c7e05b4ac 100644
--- a/pytype.conf
+++ b/pytype.conf
@@ -29,7 +29,7 @@ pythonpath =
 
 # Comma separated list of error names to ignore.
 disable =
-#    pyi-error
+    pyi-error
 
 # Don't report errors.
 report_errors = True