diff --git a/configure.ac b/configure.ac
index 16d8c76..a982004 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,8 @@ AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
++m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+
 # Checks for libtool
 
 LT_INIT