diff --git a/script/static-checks/static-checks-coding-style-line-endings.sh b/script/static-checks/static-checks-coding-style-line-endings.sh
index 7e25f64..5aed85a 100755
--- a/script/static-checks/static-checks-coding-style-line-endings.sh
+++ b/script/static-checks/static-checks-coding-style-line-endings.sh
@@ -20,7 +20,7 @@
 if [[ "$2" == "patch" ]]; then
     cd "$1"
     shopt -s globstar
-    parent=$(get_merge_base)
+    parent=${merge_base}
     git diff $parent..HEAD --no-ext-diff --unified=0 --exit-code -a \
       --no-prefix **/{Makefile,*.{S,c,h,i,dts,dtsi,rst,mk,rs}} | \
       awk '/^\+/ && /\r$/' &> "$LOG_FILE"