diff --git a/src/composables/useProgressFavicon.ts b/src/composables/useProgressFavicon.ts
index 0326274f4a..a3cf805595 100644
--- a/src/composables/useProgressFavicon.ts
+++ b/src/composables/useProgressFavicon.ts
@@ -15,7 +15,10 @@ export const useProgressFavicon = () => {
       if (isIdle) {
         favicon.value = defaultFavicon
       } else {
-        const frame = Math.floor(progress * totalFrames)
+        const frame = Math.min(
+          Math.max(0, Math.floor(progress * totalFrames)),
+          totalFrames - 1
+        )
         favicon.value = `/assets/images/favicon_progress_16x16/frame_${frame}.png`
       }
     }
diff --git a/src/stores/executionStore.ts b/src/stores/executionStore.ts
index a4c3fdae31..1f97d3db25 100644
--- a/src/stores/executionStore.ts
+++ b/src/stores/executionStore.ts
@@ -88,7 +88,7 @@ export const useExecutionStore = defineStore('execution', () => {
     if (!activePrompt.value) return 0
     const total = totalNodesToExecute.value
     const done = nodesExecuted.value
-    return done / total
+    return total > 0 ? done / total : 0
   })
 
   function bindExecutionEvents() {