diff --git a/docker-compose.yml b/docker-compose.yml
index 9d859cd..97c95f8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -36,6 +36,7 @@ services:
       PORT: 5555
       DATABASE_URL: postgresql://${PGUSER:-socialflow}:${PGPASSWORD:-changeme}@postgres:4523/${PGDATABASE:-socialflow}
       OPENROUTER_API_KEY: ${OPENROUTER_API_KEY}
+      GEMINI_API_KEY: ${GEMINI_API_KEY}
       SESSION_SECRET: ${SESSION_SECRET:-your-secret-key-change-me}
       APP_URL: ${APP_URL:-http://localhost:5555}
       # URL interne Docker pour que ffmpeg-api puisse télécharger les fichiers audio
diff --git a/server/routes/reels.ts b/server/routes/reels.ts
index 2eef9a2..3d9407d 100644
--- a/server/routes/reels.ts
+++ b/server/routes/reels.ts
@@ -324,7 +324,7 @@ reelsRouter.post('/reels/preview', async (req: Request, res: Response) => {
         let geminiApiKey: string | undefined = undefined;
         if (ttsEngine === "gemini") {
             const appCfg = await storage.getAppConfig();
-            geminiApiKey = appCfg?.geminiApiKey ?? undefined;
+            geminiApiKey = appCfg?.geminiApiKey ?? process.env.GEMINI_API_KEY ?? undefined;
         }
 
         const finalWordDuration = wordDuration;
@@ -378,7 +378,7 @@ reelsRouter.post('/reels/tts-preview', async (req: Request, res: Response) => {
         let geminiApiKey: string | undefined = undefined;
         if (ttsEngine === "gemini") {
             const appCfg = await storage.getAppConfig();
-            geminiApiKey = appCfg?.geminiApiKey ?? undefined;
+            geminiApiKey = appCfg?.geminiApiKey ?? process.env.GEMINI_API_KEY ?? undefined;
         }
 
         const result = await ffmpegService.previewTTS(text, ttsVoice, ttsEngine, geminiApiKey);
@@ -566,7 +566,7 @@ async function processReelBackground(
         let geminiApiKey: string | undefined = undefined;
         if (ttsEngine === "gemini") {
             const appCfg = await storage.getAppConfig();
-            geminiApiKey = appCfg?.geminiApiKey ?? undefined;
+            geminiApiKey = appCfg?.geminiApiKey ?? process.env.GEMINI_API_KEY ?? undefined;
         }
 
         const finalWordDuration = wordDuration ?? 0.6;