diff --git a/code/src/main/java/org/example/util/JsonMapConverter.java b/code/src/main/java/org/example/util/JsonMapConverter.java
index 9f3fa02..a28f32b 100644
--- a/code/src/main/java/org/example/util/JsonMapConverter.java
+++ b/code/src/main/java/org/example/util/JsonMapConverter.java
@@ -37,7 +37,7 @@ public static Map<String, Object> jsonToMap(String json) {
      * @return a JSON string representation of the Map
      */
     public static String mapToJson(Map<String, Object> map) {
-        if (map != null) {
+        if (map == null) {
             throw new IllegalArgumentException("Map cannot be null");
         }