diff --git a/.pre-commit.sh b/.pre-commit.sh
index 30f09eb9..0e0e3c1a 100755
--- a/.pre-commit.sh
+++ b/.pre-commit.sh
@@ -12,6 +12,7 @@ checker_dirty=0
 # Working? -> Stash unstaged changes, run it, pop stash
 STAGED_PYTHON_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".py$")
 
+
 # Formatter: black
 
 printf "> black ... "
@@ -23,8 +24,8 @@ if type black &>/dev/null; then
         BLACK_OUTPUT="/tmp/gc-black-output.log"
         touch $BLACK_OUTPUT
 
-        if ! black --check "$STAGED_PYTHON_FILES" &>$BLACK_OUTPUT; then
-            black "$STAGED_PYTHON_FILES" &>$BLACK_OUTPUT
+        if ! echo "$STAGED_PYTHON_FILES" | xargs -d'\n' black --check &>$BLACK_OUTPUT; then
+            echo "$STAGED_PYTHON_FILES" | xargs -d'\n' black &>$BLACK_OUTPUT
             tail -1 $BLACK_OUTPUT
             formatter_updated=1
         else
@@ -47,8 +48,8 @@ if type isort &>/dev/null; then
         ISORT_OUTPUT="/tmp/gc-isort-output.log"
         touch $ISORT_OUTPUT
 
-        if ! isort --check-only "$STAGED_PYTHON_FILES" &>$ISORT_OUTPUT; then
-            isort "$STAGED_PYTHON_FILES" &>$ISORT_OUTPUT
+        if ! echo "$STAGED_PYTHON_FILES" | xargs -d'\n' isort --check-only &>$ISORT_OUTPUT; then
+            echo "$STAGED_PYTHON_FILES" | xargs -d'\n' isort &>$ISORT_OUTPUT
             printf "Reformatted.\n"
             formatter_updated=1
         else
@@ -71,7 +72,7 @@ if type flake8 &>/dev/null; then
         FLAKE8_OUTPUT="/tmp/gc-flake8-output.log"
         touch $FLAKE8_OUTPUT
 
-        if ! flake8 "$STAGED_PYTHON_FILES" &>$FLAKE8_OUTPUT; then
+        if ! echo "$STAGED_PYTHON_FILES" | xargs -d'\n' flake8 &>$FLAKE8_OUTPUT; then
             printf "FAIL\n"
             cat $FLAKE8_OUTPUT
             checker_dirty=1