diff --git a/CHANGES b/CHANGES
index 318463c0b..c8b899ebe 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2106,4 +2106,5 @@
 * nginx: add splash pages for IP based browser access
 * Give services panel a separate top-level view
 * Add app state filter
+* gcs: copy concurrency was not used
 
diff --git a/src/storage/gcs.js b/src/storage/gcs.js
index 5afc7a0bd..ecd934024 100644
--- a/src/storage/gcs.js
+++ b/src/storage/gcs.js
@@ -174,7 +174,8 @@ function copy(apiConfig, oldFilePath, newFilePath) {
         });
     }
 
-    const batchSize = 1000, concurrency = 10;
+    const batchSize = 1000;
+    const concurrency = apiConfig.copyConcurrency || 10;
     var total = 0;
 
     listDir(apiConfig, oldFilePath, batchSize, function (entries, done) {