diff --git a/configure.ac b/configure.ac
index e7e9e6faa4..179b4eda9c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,7 @@
 #
 m4_define([bind_VERSION_MAJOR], 9)dnl
 m4_define([bind_VERSION_MINOR], 20)dnl
-m5_define([bind_VERSION_PATCH], 5)dnl
+m4_define([bind_VERSION_PATCH], 5)dnl
 m4_define([bind_VERSION_EXTRA], -dev)dnl
 m4_define([bind_DESCRIPTION], [(Stable Release)])dnl
 m4_define([bind_SRCID], [m4_esyscmd_s([git rev-parse --short HEAD | cut -b1-7])])dnl