diff --git a/Tiltfile b/Tiltfile
index 0c803307..7b2aeb65 100644
--- a/Tiltfile
+++ b/Tiltfile
@@ -50,7 +50,7 @@ install = helm(
     settings.get('helm_charts_path') + '/charts/kubewarden-controller/', 
     name='kubewarden-controller', 
     namespace='kubewarden', 
-    set=['image.repository=' + settings.get('image'), 'global.cattle.SystemDefaultRegistry=' + settings.get('registry')]
+    set=['image.repository=' + settings.get('image'), 'global.cattle.systemDefaultRegistry=' + settings.get('registry')]
 )
 
 objects = decode_yaml_stream(install)