diff --git a/app/src/lib/hooks/useHistory.ts b/app/src/lib/hooks/useHistory.ts
index e6f4aa7a..51983339 100644
--- a/app/src/lib/hooks/useHistory.ts
+++ b/app/src/lib/hooks/useHistory.ts
@@ -47,12 +47,14 @@ export function useExportGeneration() {
     mutationFn: async ({ generationId, text }: { generationId: string; text: string }) => {
       const blob = await apiClient.exportGeneration(generationId);
 
-      // Create safe filename from text
+      // Create safe filename from text. Append a short id so exports of
+      // similarly-worded generations don't collide on the same filename
+      // (the first 30 chars are frequently identical).
       const safeText = text
         .substring(0, 30)
         .replace(/[^a-z0-9]/gi, '-')
         .toLowerCase();
-      const filename = `generation-${safeText}.voicebox.zip`;
+      const filename = `generation-${safeText}-${generationId.substring(0, 8)}.voicebox.zip`;
 
       await platform.filesystem.saveFile(filename, blob, [
         {
@@ -73,12 +75,14 @@ export function useExportGenerationAudio() {
     mutationFn: async ({ generationId, text }: { generationId: string; text: string }) => {
       const blob = await apiClient.exportGenerationAudio(generationId);
 
-      // Create safe filename from text
+      // Create safe filename from text. Append a short id so exports of
+      // similarly-worded generations don't collide on the same filename
+      // (the first 30 chars are frequently identical).
       const safeText = text
         .substring(0, 30)
         .replace(/[^a-z0-9]/gi, '-')
         .toLowerCase();
-      const filename = `${safeText}.wav`;
+      const filename = `${safeText}-${generationId.substring(0, 8)}.wav`;
 
       await platform.filesystem.saveFile(filename, blob, [
         {
diff --git a/backend/routes/history.py b/backend/routes/history.py
index d5aa0533..32b7a542 100644
--- a/backend/routes/history.py
+++ b/backend/routes/history.py
@@ -151,7 +151,9 @@ async def export_generation(
     safe_text = "".join(c for c in generation.text[:30] if c.isalnum() or c in (" ", "-", "_")).strip()
     if not safe_text:
         safe_text = "generation"
-    filename = f"generation-{safe_text}.voicebox.zip"
+    # Append a short id so exports of similarly-worded generations don't collide
+    # on the same filename (the first 30 chars are frequently identical).
+    filename = f"generation-{safe_text}-{generation_id[:8]}.voicebox.zip"
 
     return StreamingResponse(
         io.BytesIO(zip_bytes),
@@ -180,7 +182,9 @@ async def export_generation_audio(
     safe_text = "".join(c for c in generation.text[:30] if c.isalnum() or c in (" ", "-", "_")).strip()
     if not safe_text:
         safe_text = "generation"
-    filename = f"{safe_text}.wav"
+    # Append a short id so exports of similarly-worded generations don't collide
+    # on the same filename (the first 30 chars are frequently identical).
+    filename = f"{safe_text}-{generation_id[:8]}.wav"
 
     return FileResponse(
         audio_path,