1 files changed, 1 insertions, 1 deletions
diff --git a/bin/pre b/bin/pre
index 2b32f8f..f588310 100755
--- a/bin/pre
+++ b/bin/pre
@@ -67,7 +67,7 @@ done
 shift $((OPTIND - 1))
 
 PREFIX="${1:-}"
-eval "$(assert-arg "$PREFIX" 'PREFIX')"
+eval "$(assert-arg -- "$PREFIX" 'PREFIX')"
 
 while read -r line; do
 	if [ -z "$COLOR" ]; then