diff --git a/configure.ac b/configure.ac
index 79f9597..8aa3d6b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,7 +34,7 @@
 dnl version.  This same version number must appear in fontconfig/fontconfig.h
 dnl Yes, it is a pain to synchronize version numbers.  Unfortunately, it's
 dnl not possible to extract the version number here from fontconfig.h
-AM_INIT_AUTOMAKE(fontconfig, 2.10)
+AM_INIT_AUTOMAKE(fontconfig, 2.10.0)
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 
 dnl libtool versioning