diff --git a/projects/common/models/state-variable.ts b/projects/common/models/state-variable.ts
index d9d37afd009ddb0407838ab7144d2c4b5932b71c..7028d02d79c7633fcfb3cbca69f9b5f393655e00 100644
--- a/projects/common/models/state-variable.ts
+++ b/projects/common/models/state-variable.ts
@@ -1,8 +1,4 @@
-export class StateVariable {
+export interface StateVariable {
   id: string;
   value: string;
-  constructor(id: string, value: string) {
-    this.id = id;
-    this.value = value;
-  }
 }
diff --git a/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variable-editor.component.ts b/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variable-editor.component.ts
index ee07eb08fb0a4fdf41f72fa75f5c635549538ddd..08626c82bcce0a503d11aa58d75ab22994aa91c8 100644
--- a/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variable-editor.component.ts
+++ b/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variable-editor.component.ts
@@ -8,6 +8,6 @@ import { StateVariable } from 'common/models/state-variable';
   templateUrl: './state-variable-editor.component.html'
 })
 export class StateVariableEditorComponent {
-  @Input() stateVariable: StateVariable = new StateVariable('', '');
+  @Input() stateVariable: StateVariable = { id: '', value: '' };
   @Output() stateVariableChange = new EventEmitter<StateVariable>();
 }
diff --git a/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variables-dialog.component.ts b/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variables-dialog.component.ts
index c76afdd04be628ff59b294b90bceebb9f68b94d0..50e286c4f43f97080a2ac37f40e112b0c5697855 100644
--- a/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variables-dialog.component.ts
+++ b/projects/editor/src/app/components/dialogs/state-variables-dialog/state-variables-dialog.component.ts
@@ -13,7 +13,7 @@ export class StateVariablesDialogComponent {
   }
 
   addStateVariable() {
-    this.stateVariables.push(new StateVariable('NewState', '1'));
+    this.stateVariables.push({ id: 'NewState', value: '1' });
   }
 
   deleteStateVariable(index: number) {