diff --git a/configure.ac.in b/configure.ac.in
index 925139667c5efcc4b97f618c1ba29ed9172c9d39..110539649974f75a96041de6e26a20d9e4b6bc37 100644
--- a/configure.ac.in
+++ b/configure.ac.in
@@ -29,7 +29,7 @@ m4_define([thunar_version_minor], [18])
 m4_define([thunar_version_micro], [1])
 m4_define([thunar_version_nano], [])
 m4_define([thunar_version_build], [@REVISION@])
-m4_define([thunar_version_tag], [])
+m4_define([thunar_version_tag], [git])
 m4_define([thunar_version], [thunar_version_major().thunar_version_minor().thunar_version_micro()ifelse(thunar_version_nano(), [], [], [.thunar_version_nano()])ifelse(thunar_version_tag(), [git], [thunar_version_tag()-thunar_version_build()], [thunar_version_tag()])])
 
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