diff --git a/configure.ac b/configure.ac
index 0f7fca68..2d265530 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,13 +27,13 @@ AC_INIT([xf86-video-intel],
         xf86-video-intel)
 
 AC_DEFINE_UNQUOTED([INTEL_VERSION_MAJOR],
-		   [$(echo $PACKAGE_VERSION | sed -e 's/^\([[0-9]]\+\)\.[[0-9]]\+\.[[0-9]]\+/\1/')],
+		   [$(echo $PACKAGE_VERSION | sed -e 's/^\([[0-9]]*\)\.[[0-9]]*\.[[0-9]]*/\1/')],
 		   [Major version])
 AC_DEFINE_UNQUOTED([INTEL_VERSION_MINOR],
-		   [$(echo $PACKAGE_VERSION | sed -e 's/^[[0-9]]\+\.\([[0-9]]\+\)\.[[0-9]]\+/\1/')],
+		   [$(echo $PACKAGE_VERSION | sed -e 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*/\1/')],
 		   [Minor version])
 AC_DEFINE_UNQUOTED([INTEL_VERSION_PATCH],
-		   [$(echo $PACKAGE_VERSION | sed -e 's/^[[0-9]]\+\.[[0-9]]\+\.\([[0-9]]\+\)/\1/')],
+		   [$(echo $PACKAGE_VERSION | sed -e 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)/\1/')],
 		   [Patch version])
 
 AC_CONFIG_SRCDIR([Makefile.am])