1 files changed, 6 insertions, 4 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 525bf884f0..2fb8b64e54 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
@@ -52,10 +52,12 @@ export class ConstraintsComponent implements OnInit {
       }
     }
     this.constraints = new Array();
-    if (changes.propertyConstraints && changes.propertyConstraints.currentValue) {
-      changes.propertyConstraints.currentValue.forEach((constraint: any) => {
-        this.constraints.push(this.getConstraintFromPropertyBEModel(constraint));
-      });
+    if(changes.propertyConstraints) {
+      if (changes.propertyConstraints.currentValue) {
+        changes.propertyConstraints.currentValue.forEach((constraint: any) => {
+            this.constraints.push(this.getConstraintFromPropertyBEModel(constraint));
+        });
+      }
     }
   }