diff --git a/apps/stump/stump-config.configmap.yaml b/apps/stump/stump-config.configmap.yaml
index 822609e..d3ac171 100644
--- a/apps/stump/stump-config.configmap.yaml
+++ b/apps/stump/stump-config.configmap.yaml
@@ -3,6 +3,6 @@ kind: ConfigMap
 metadata:
   name: stump-config
 data:
-  STUMP_ENABLE_UPLOAD: true
+  STUMP_ENABLE_UPLOAD: "true"
   STUMP_CONFIG_DIR: /config
   ENABLE_KOREADER_SYNC: "true"