diff --git a/configure.ac.in b/configure.ac.in
index b2d5b735d24aa6a1cf62e02630818b9a0fb9f6cf..5d8afba62d2d72dca6971600094d12ce504a2d88 100644
--- a/configure.ac.in
+++ b/configure.ac.in
@@ -7,7 +7,7 @@ m4_define([xfwm4_version_major], [4])
 m4_define([xfwm4_version_minor], [15])
 m4_define([xfwm4_version_micro], [0])
 m4_define([xfwm4_version_build], [@REVISION@])
-m4_define([xfwm4_version_tag],   [])
+m4_define([xfwm4_version_tag],   [git])
 m4_define([xfwm4_version], [xfwm4_version_major().xfwm4_version_minor().xfwm4_version_micro()ifelse(xfwm4_version_tag(), [git], [xfwm4_version_tag().xfwm4_version_build()], [xfwm4_version_tag()])])
 
 m4_define([gtk_minimum_version], [3.20.0])