1 files changed, 2 insertions, 2 deletions
diff --git a/catalog-ui/src/app/ng2/pages/properties-assignment/constraints/constraints.component.ts b/catalog-ui/src/app/ng2/pages/properties-assignment/constraints/constraints.component.ts
index 1e0eb4f2aa..525bf884f0 100644
--- a/catalog-ui/src/app/ng2/pages/properties-assignment/constraints/constraints.component.ts
+++ b/catalog-ui/src/app/ng2/pages/properties-assignment/constraints/constraints.component.ts
@@ -52,7 +52,7 @@ export class ConstraintsComponent implements OnInit {
       }
     }
     this.constraints = new Array();
-    if(changes.propertyConstraints.currentValue) {
+    if (changes.propertyConstraints && changes.propertyConstraints.currentValue) {
       changes.propertyConstraints.currentValue.forEach((constraint: any) => {
         this.constraints.push(this.getConstraintFromPropertyBEModel(constraint));
       });
@@ -341,4 +341,4 @@ export const ConstraintTypesMapping = {
 export interface Constraint {
   type:ConstraintTypes,
   value:any
-}
-\ No newline at end of file
+}