diff --git a/src/jaildk.sh b/src/jaildk.sh
index 58d78c5..cd331fd 100755
--- a/src/jaildk.sh
+++ b/src/jaildk.sh
@@ -2482,7 +2482,7 @@ sanitycheck() {
     for program in cpdup; do
         if ! command -v $program 2>&1 >/dev/null; then
             echo "$program must be installed!" >&2
-            exit1
+            exit 1
         fi
     done
 }