diff --git a/knotx-core/src/main/java/io/knotx/launcher/SystemPropsConfiguration.java b/knotx-core/src/main/java/io/knotx/launcher/SystemPropsConfiguration.java
index 35788326..c44accfc 100644
--- a/knotx-core/src/main/java/io/knotx/launcher/SystemPropsConfiguration.java
+++ b/knotx-core/src/main/java/io/knotx/launcher/SystemPropsConfiguration.java
@@ -85,7 +85,7 @@ public JsonObject updateJsonObject(JsonObject descriptor) {
               if (element.containsKey(path[idx])) {
                 element = element.getJsonObject(path[idx]);
               } else {
-                throw new ConfigurationException(
+                throw new IllegalArgumentException (
                     "Wrong config override. There is no matching element " + entry.getKey()
                         + " in the configuration");
               }