diff --git a/tools/gate/whitespace-linter.sh b/tools/gate/whitespace-linter.sh
index 7e48b834..031a6b45 100755
--- a/tools/gate/whitespace-linter.sh
+++ b/tools/gate/whitespace-linter.sh
@@ -5,7 +5,9 @@ RES=$(find . \
   -not -path "*/\.*" \
   -not -path "*/doc/build/*" \
   -not -path "*/doc/source/images/*" \
+  -not -path "*/htmlcov/*" \
   -not -name "*.tgz" \
+  -not -name "*.pyc" \
   -type f -exec egrep -l " +$" {} \;)
 
 if [[ -n $RES ]]; then