diff --git a/.env.example b/.env.example
index d33d5d8..953fee0 100644
--- a/.env.example
+++ b/.env.example
@@ -15,3 +15,4 @@ APP_TITLE=S3 Media Transcoder
 # Session Cache (Valkey / Redis)
 VALKEY_URL=redis://localhost:6379
 VALKEY_DB=0
+VALKEY_PREFIX=mediaconverter
diff --git a/ecosystem.config.js b/ecosystem.config.js
index 80a679e..e24777e 100644
--- a/ecosystem.config.js
+++ b/ecosystem.config.js
@@ -19,7 +19,8 @@ module.exports = {
         S3_FORCE_PATH_STYLE: 'true',
         APP_TITLE: 'S3 Media Transcoder',
         VALKEY_URL: 'redis://localhost:6379',
-        VALKEY_DB: 0
+        VALKEY_DB: 0,
+        VALKEY_PREFIX: 'mediaconverter'
       }
     }
   ]
diff --git a/server.js b/server.js
index 7f884ff..18ece72 100644
--- a/server.js
+++ b/server.js
@@ -33,8 +33,10 @@ if (typeof ffmpeg.setFfprobePath === 'function') {
 
 const redisUrl = process.env.VALKEY_URL || process.env.REDIS_URL || 'redis://localhost:6379';
 const redisDb = parseInt(process.env.VALKEY_DB || process.env.REDIS_DB || '0', 10);
+const redisPrefix = process.env.VALKEY_PREFIX || process.env.REDIS_PREFIX || '';
 const redisClient = new Redis(redisUrl, {
-    db: isNaN(redisDb) ? 0 : redisDb
+    db: isNaN(redisDb) ? 0 : redisDb,
+    keyPrefix: redisPrefix ? (redisPrefix.endsWith(':') ? redisPrefix : redisPrefix + ':') : ''
 });
 
 app.use(cors());