diff --git a/lib/common.sh b/lib/common.sh
index 2e51504..1fff511 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -49,7 +49,7 @@ ssr::confirm() {
         read -r -n 1 -p "${prompt} [y/N]: " reply || reply=""
     fi
     echo
-    [[ "${reply,,}" == "y" ]]
+    case "$reply" in y|Y) return 0 ;; *) return 1 ;; esac
 }
 
 # Validate a path is safe (no newlines, no `..` traversal). Used before any FS op.