diff --git a/source/blender/modifiers/intern/MOD_grease_pencil_util.cc b/source/blender/modifiers/intern/MOD_grease_pencil_util.cc
index e003f3fad00..a348a172180 100644
--- a/source/blender/modifiers/intern/MOD_grease_pencil_util.cc
+++ b/source/blender/modifiers/intern/MOD_grease_pencil_util.cc
@@ -172,7 +172,7 @@ void draw_custom_curve_settings(const bContext * /*C*/, uiLayout *layout, Pointe
   uiLayoutSetPropDecorate(row, false);
   uiItemR(row, ptr, "use_custom_curve", UI_ITEM_NONE, "Custom Curve", ICON_NONE);
   if (use_custom_curve) {
-    uiTemplateCurveMapping(row, ptr, "custom_curve", 0, false, false, false, false);
+    uiTemplateCurveMapping(layout, ptr, "custom_curve", 0, false, false, false, false);
   }
 }