diff --git a/release-notes.txt b/release-notes.txt
index f3d161fcd..9725b5aaf 100644
--- a/release-notes.txt
+++ b/release-notes.txt
@@ -1,4 +1,4 @@
-RIOT-2018.4 - Release Notes
+RIOT-2018.04 - Release Notes
 ============================
 RIOT is a multi-threading operating system which enables soft real-time
 capabilities and comes with support for a range of devices that are typically