diff --git a/libosmocore.spec b/libosmocore.spec
index bb6c446..ae446e5 100644
--- a/libosmocore.spec
+++ b/libosmocore.spec
@@ -26,6 +26,7 @@ Url:            http://bb.osmocom.org/trac/wiki/libosmocore
 
 #Git-Clone:	git://git.osmocom.org/libosmocore
 #Snapshot:	0.7.0
+#Update osmo-version.diff too!
 Source:         %name-%version.tar.xz
 Patch1:         osmo-version.diff
 Patch2:         0001-utils-resolve-compiler-warnings-on-implicit-declarat.patch