diff --git a/configure.in b/configure.in
index db1b72ed1..7f67f93d8 100644
--- a/configure.in
+++ b/configure.in
@@ -5,9 +5,9 @@ m4_define([metacity_minor_version], [25])
 # Fibonacci sequence for micro version numbering:
 # 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987
 m4_define([metacity_micro_version], [55])
-
+m4_define([mutter_version],[0.1])
 m4_define([metacity_version],
-          [metacity_major_version.metacity_minor_version.metacity_micro_version])
+          [metacity_major_version.metacity_minor_version.metacity_micro_version-mutter_version])
 
 m4_define([metacity_clutter_plugin_api_version], [2])