diff --git a/buildSrc/src/steamwar.devserver.gradle b/buildSrc/src/steamwar.devserver.gradle
index f40eefb1..feeadce2 100644
--- a/buildSrc/src/steamwar.devserver.gradle
+++ b/buildSrc/src/steamwar.devserver.gradle
@@ -42,7 +42,7 @@ class DevServer extends DefaultTask {
 
     @Input
     @Optional
-    Map<String, String> dParams = {}
+    Map<String, String> dParams = new HashMap<>()
 
     DevServer() {
         super()