diff --git a/configure.ac b/configure.ac
index 2497c00f..e1b09ef5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,6 +41,7 @@ AC_CONFIG_MACRO_DIR([m4])
 #------------------------------------------------------------------------------
 
 AC_PROG_CXX
+AM_PROG_AR
 AC_PROG_LIBTOOL
 AM_PROG_CC_C_O