diff --git a/src/playermat/Playmat.ttslua b/src/playermat/Playmat.ttslua
index 47bd0e17..41620ad8 100644
--- a/src/playermat/Playmat.ttslua
+++ b/src/playermat/Playmat.ttslua
@@ -631,7 +631,7 @@ function showDrawButton(visible)
     self.createButton({
         label = "Draw 1",
         click_function = "doDrawOne",
-        function_owner = mat,
+        function_owner = self,
         position = { 1.84, 0.1, -0.36 },
         scale = { 0.12, 0.12, 0.12 },
         width = 800,