diff --git a/configure.ac b/configure.ac
index 0391331..b3a42f0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,6 +14,8 @@ gl_INIT
 
 AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h stddef.h stdint.h stdlib.h string.h unistd.h])
 
+AC_PROG_RANLIB
+
 AC_CHECK_HEADER_STDBOOL
 AC_TYPE_MODE_T
 AC_FUNC_OBSTACK