diff --git a/snippets/isValidJSON.md b/snippets/isValidJSON.md
index e9898caee..76257a007 100644
--- a/snippets/isValidJSON.md
+++ b/snippets/isValidJSON.md
@@ -8,8 +8,10 @@ Use `JSON.parse()` and a `try... catch` block to check if the provided argument
 const isValidJSON = obj => {
   try {
     JSON.parse(obj);
-    return true;
-  } catch (e) {
+    if (o && typeof o === "object") {
+            return true;
+        }
+} catch (e) {
     return false;
   }
 };