diff --git a/lib/features/docker_save.js b/lib/features/docker_save.js
index b0a64414..db86140d 100644
--- a/lib/features/docker_save.js
+++ b/lib/features/docker_save.js
@@ -11,6 +11,9 @@ import zlib from 'zlib';
 
 let debug = Debug('docker-worker:features:docker-save');
 
+//must be changed if the delimiter in lib/volume_cache.js is changed
+let KEY_DELIMITER = '::';
+
 export default class DockerSave {
   //commits and uploads the docker image as an artifact
   async uploadContainer(task) {
@@ -54,7 +57,7 @@ export default class DockerSave {
   //uploading a cache folder as an artifact
   async uploadCache(task, cacheStr) {
     let cache = task.runtime.volumeCache.splitKey(cacheStr);
-    let loc = task.runtime.volumeCache.getCacheLocation(cacheStr);
+    let loc = path.join(task.runtime.cache.volumeCachePath, cache.cacheName, cache.instanceId + '/');
 
     //temporary path for saved file
     let pathname = path.join(task.runtime.dockerVolume, slugid.v4() + '.tar');
diff --git a/lib/volume_cache.js b/lib/volume_cache.js
index 76519266..b82c498d 100644
--- a/lib/volume_cache.js
+++ b/lib/volume_cache.js
@@ -235,13 +235,11 @@ export default class VolumeCache {
     }
   }
 
-  /**
-  Get the location of a cache on disk.
-
-  @param {String} Cache key in the format of <cache name>::<instance id>
-  */
-  getCacheLocation(cacheKey) {
-    var {cacheName, instanceId} = this.splitKey(cacheKey);
-    return path.join(this.rootCachePath, cacheName, instanceId + '/');
+  splitKey(cacheKey) {
+    var cacheSplit = cacheKey.split(KEY_DELIMITER);
+    return({
+      cacheName: cacheSplit[0],
+      instanceId: cacheSplit[1]
+    });
   }
 }
diff --git a/test/integration/docker_save_test.js b/test/integration/docker_save_test.js
index d4731fb9..813dd871 100644
--- a/test/integration/docker_save_test.js
+++ b/test/integration/docker_save_test.js
@@ -78,7 +78,7 @@ suite('use docker-save', () => {
         0x74,0x65,0x73,0x74,0x53,0x74,0x72,0x69,0x6e,0x67,0x0a))); //testString\n
       finished = true;
     });
-    await base.testing.sleep(7000);
+    await base.testing.sleep(5000);
     assert(finished, 'did not receive any data back');
     await Promise.all([container.remove(), fs.unlink('/tmp/dockerload.tar')]);
     await docker.getImage(imageName).remove();