diff --git a/package/mender/mender.conf b/package/mender/mender.conf
index 979f16aaf6..f89118ac1b 100644
--- a/package/mender/mender.conf
+++ b/package/mender/mender.conf
@@ -2,8 +2,8 @@
   "InventoryPollIntervalSeconds": 1800,
   "UpdatePollIntervalSeconds": 1800,
   "RetryPollIntervalSeconds": 300,
-  "RootfsPartA": "mmcblk0p2",
-  "RootfsPartB": "mmcblk0p3",
+  "RootfsPartA": "/dev/mmcblk0p2",
+  "RootfsPartB": "/dev/mmcblk0p3",
   "ServerCertificate": "/etc/mender/server.crt",
   "ServerURL": "https://docker.mender.io",
   "TenantToken": "dummy"