diff --git a/configure.ac b/configure.ac
index e8b89ee03..d9b796d30 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ m4_define([v_mic], [0])
 m4_define([v_rev], m4_esyscmd([(svnversion "${SVN_REPO_PATH:-.}" | grep -v '\(export\|Unversioned directory\)' || echo 0) | awk -F : '{printf("%s\n", $1);}' | tr -d ' :MSP\n']))
 m4_if(v_rev, [0], [m4_define([v_rev], m4_esyscmd([git log 2> /dev/null | (grep -m1 git-svn-id || echo 0) | sed -e 's/.*@\([0-9]*\).*/\1/' | tr -d '\n']))])
 ##--   When released, remove the dnl on the below line
-m4_undefine([v_rev])
+dnl m4_undefine([v_rev])
 m4_define([relname], [0.17.0])
 ##--   When doing snapshots - change soname. remove dnl on below line
 dnl m4_define([relname], [ver-pre-svn-08])