diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c
index 2004e3b052d..5969de5b5da 100644
--- a/source/blender/editors/transform/transform.c
+++ b/source/blender/editors/transform/transform.c
@@ -599,7 +599,8 @@ static bool transform_modal_item_poll(const wmOperator *op, int value)
     case TFM_MODAL_AXIS_Z:
     case TFM_MODAL_PLANE_X:
     case TFM_MODAL_PLANE_Y:
-    case TFM_MODAL_PLANE_Z: {
+    case TFM_MODAL_PLANE_Z:
+    case TFM_MODAL_AUTOCONSTRAINTPLANE: {
       if (t->flag & T_NO_CONSTRAINT) {
         return false;
       }