diff --git a/scripts/kamp-files b/scripts/kamp-files
index c7ec39e..2c02d0d 100755
--- a/scripts/kamp-files
+++ b/scripts/kamp-files
@@ -10,7 +10,7 @@
 set -euf
 
 usage() {
-    printf "Usage: %s: [-b <fd|rg|find|git>] [backend_options]\n" "$(basename "$0")" >&2
+    printf "Usage: %s: [-b <fd|rg|find|git>] -- [backend_options]\n" "$(basename "$0")" >&2
     exit 2
 }
 
diff --git a/scripts/kamp-grep b/scripts/kamp-grep
index c201bf1..4584fcb 100755
--- a/scripts/kamp-grep
+++ b/scripts/kamp-grep
@@ -16,7 +16,7 @@ set -euf
 SHELL=/bin/sh
 
 usage() {
-    printf "Usage: %s: [-q query] [rg_options]\n" "$(basename "$0")" >&2
+    printf "Usage: %s: [-q query] -- [rg_options]\n" "$(basename "$0")" >&2
     exit 2
 }