diff --git a/scripts/test.sh b/scripts/test.sh
index e353d943..d4473a34 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -31,7 +31,7 @@ function check_versions_match() {
 # Ensures there are no tabs in any file.
 function ensure_tab_free() {
   local tab=$(printf '\t')
-  local matches=$(grep -I -R "${tab}" "${ROOT_DIR}" | egrep -v '/target|/.git|LICENSE')
+  local matches=$(git grep -E -I "${tab}" "${ROOT_DIR}" | egrep -v 'LICENSE')
   if ! [ -z "${matches}" ]; then
     echo "Tab characters were found in the following:"
     echo "${matches}"
@@ -41,7 +41,7 @@ function ensure_tab_free() {
 
 # Ensures there are no files with trailing whitespace.
 function ensure_trailing_whitespace_free() {
-  local matches=$(egrep -I -R " +$" "${ROOT_DIR}" | egrep -v "/target|/.git")
+  local matches=$(git grep -E -I "\s+$" "${ROOT_DIR}")
   if ! [ -z "${matches}" ]; then
     echo "Trailing whitespace was found in the following:"
     echo "${matches}"