diff --git a/modules/workbenches/modeler/features/patternRadial/patternRadial.operation.ts b/modules/workbenches/modeler/features/patternRadial/patternRadial.operation.ts
index 8a54689e..59d6a964 100644
--- a/modules/workbenches/modeler/features/patternRadial/patternRadial.operation.ts
+++ b/modules/workbenches/modeler/features/patternRadial/patternRadial.operation.ts
@@ -8,6 +8,8 @@ import {MShell} from 'cad/model/mshell';
 import {Matrix3x4} from "math/matrix";
 import {AddLocation, SetLocation} from "cad/craft/e0/interact";
 import {DEG_RAD} from "math/commons";
+import { SameTopologyProductionAnalyzer } from "cad/craft/production/productionAnalyzer";
+
 import icon from "./RADIAL-PATTERN.svg"
 
 interface patternRadialParams {