diff --git a/configure.ac b/configure.ac
index 90f2eb5..979d130 100644
--- a/configure.ac
+++ b/configure.ac
@@ -98,6 +98,7 @@ ACLOCAL="$ACLOCAL -I m4"
 
 AM_MAINTAINER_MODE
 
+AM_PROG_AR
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CC_STDC