diff --git a/configure.ac b/configure.ac
index cf42c220c6a0824255964402ceb2a51982c8fd0a..bdf9940876b885f8a281f5c820d9fa766fde693a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,7 +127,7 @@ AC_SUBST(ENABLE_COMPOSITOR)
 dnl Check for debugging support
 BM_DEBUG_SUPPORT
 
-REVISION=`svnversion -n . | cut -d ":" -f2`
+REVISION=`echo "$Rev$" | cut -d " " -f2`
 AC_DEFINE_UNQUOTED([REVISION], "${REVISION}", [svn revision number])
 AC_SUBST([REVISION])