diff --git a/configure.ac b/configure.ac
index ef39707..659a765 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@ AC_PROG_CC
 # Override CFLAGS so that we can specify custom CFLAGS for numademo.
 AX_AM_OVERRIDE_VAR([CFLAGS])
 
-AX_TLS
+AX_TLS([:],[:])
 
 AX_CHECK_COMPILE_FLAG([-ftree-vectorize], [tree_vectorize="true"])
 AM_CONDITIONAL([HAVE_TREE_VECTORIZE], [test x"${tree_vectorize}" = x"true"])