diff --git a/gateleen-playground/src/main/java/org/swisspush/gateleen/playground/Server.java b/gateleen-playground/src/main/java/org/swisspush/gateleen/playground/Server.java
index 6decb174..e2353acb 100755
--- a/gateleen-playground/src/main/java/org/swisspush/gateleen/playground/Server.java
+++ b/gateleen-playground/src/main/java/org/swisspush/gateleen/playground/Server.java
@@ -237,7 +237,8 @@ public void start() {
                         SERVER_ROOT + "/admin/v1/contentTypeConstraints",
                         Arrays.asList(
                                 new PatternHolder("application/json"),
-                                new PatternHolder("application/x-www-form-urlencoded")
+                                new PatternHolder("application/x-www-form-urlencoded"),
+                                new PatternHolder("multipart/form-data")
                         ));
                 contentTypeConstraintHandler.initialize();