diff --git a/configure.ac b/configure.ac
index 047b3f0..c896866 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 m4_define([dc_version_major],[0])
 m4_define([dc_version_minor],[5])
 m4_define([dc_version_micro],[0])
-m4_define([dc_version_suffix],[devel])
+m4_define([dc_version_suffix],[devel-Subsurface-branch])
 m4_define([dc_version],dc_version_major.dc_version_minor.dc_version_micro[]m4_ifset([dc_version_suffix],-[dc_version_suffix]))
 
 # Libtool versioning.