diff --git a/app/src/types/simulationTypes.d.ts b/app/src/types/simulationTypes.d.ts
index be56d82..5aa26d2 100644
--- a/app/src/types/simulationTypes.d.ts
+++ b/app/src/types/simulationTypes.d.ts
@@ -197,7 +197,7 @@ interface StorageUnitStatus extends StorageEventSchema {
 
 interface MaterialSchema {
     materialId: string;
-    materialName: stri9ng;
+    materialName: string;
     materialType: string;
     isActive: boolean;
     isVisible: boolean;