diff --git a/src/components/design-to-light/DTLPanel.vue b/src/components/design-to-light/DTLPanel.vue
index 5cfd6fd..e6b1075 100644
--- a/src/components/design-to-light/DTLPanel.vue
+++ b/src/components/design-to-light/DTLPanel.vue
@@ -174,7 +174,11 @@ const { proposals } = defineProps({
 const { openedFile } = storeToRefs(useDialogStore());
 
 const isDialogOpen = computed(() => {
-  return openedFile.value != null;
+  if (openedFile.value) {
+    return true;
+  } else {
+    return false;
+  }
 });
 
 const isOptimizationDialogOpen = ref(false);