diff --git a/hooks/pre-commit b/hooks/pre-commit
index 5969f196..da96c7e1 100755
--- a/hooks/pre-commit
+++ b/hooks/pre-commit
@@ -129,7 +129,7 @@ for f in $RB_FILES; do
 	fi
 done
 
-if grep --line-number 'shell=True' fdroidserver/[a-ce-z]*.py; then
+if grep -C 3 'shell=True' fdroidserver/[a-ce-z]*.py; then
     err "shell=True is too dangerous, there are unfiltered user inputs!"
 fi