diff --git a/configure.ac b/configure.ac
index 0752c6f1aa..eb2213db30 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,5 @@
     AC_INIT(suricata, 4.0dev)
     m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])AM_SILENT_RULES([yes])
-    m4_ifndef([AS_VERSION_COMPARE], [AC_DEFUN([AS_VERSION_COMPARE],[])])
     AC_CONFIG_HEADERS([config.h])
     AC_CONFIG_SRCDIR([src/suricata.c])
     AC_CONFIG_MACRO_DIR(m4)