diff --git a/src/core/PlayAreaApi.ttslua b/src/core/PlayAreaApi.ttslua
index f9a1e40f..aa983829 100644
--- a/src/core/PlayAreaApi.ttslua
+++ b/src/core/PlayAreaApi.ttslua
@@ -53,7 +53,7 @@ do
 
   -- Sets the connection color
   PlayAreaApi.setConnectionColor = function(color)
-    getPlayArea().call("setConnectionColor")
+    getPlayArea().call("setConnectionColor", color)
   end
 
   -- Event to be called when the current scenario has changed.