diff --git a/front/composables/modelWrapper.ts b/front/composables/modelWrapper.ts
index 818daf1..84b5222 100644
--- a/front/composables/modelWrapper.ts
+++ b/front/composables/modelWrapper.ts
@@ -4,19 +4,21 @@ export function useModel<Type>(
   propName = "modelValue",
   options: { type?: "object" | "array" } = {}
 ) {
-  const vm = getCurrentInstance().proxy
+  const vm = getCurrentInstance()?.proxy
+  if (!vm) throw "useModel is called without an instance"
 
-  let valueToSet
-  if (options.type === "object") {
-    valueToSet = (value: object) => {
-      return { ...value }
-    }
-  } else if (options.type === "array") {
+  let valueToSet: (arg0: Type) => Type
+
+  // @ts-expect-error strange typing
+  if (options.type === "object") valueToSet = (value: object) => ({ ...value })
+  else if (options.type === "array")
+    // @ts-expect-error strange typing
     valueToSet = (value: unknown[]) => [...value]
-  } else valueToSet = (value) => value
+  else valueToSet = (value: Type) => value
 
   return computed<Type>({
     get() {
+      // @ts-expect-error strange typing
       return vm.$props[propName]
     },
     set(value) {