diff --git a/configure.ac b/configure.ac
index 8d7d3b1ba0c49239655766dd266c408de1962805..e4c51e2581f3ca415c6527abd6be613c5bf7cef3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -145,7 +145,7 @@ case "$host_cpu" in
 esac
 
 if test "x$ABI" != xstandard ; then
-  AC_MSG_NOTICE([Compiler uses $ABI-bit ABI. To change, set CFLAGS.])
+  AC_MSG_NOTICE([Compiler uses $ABI-bit ABI. To change, set CC.])
   if test "$libdir" = '${exec_prefix}/lib' ; then
     # Try setting a better default
     case "$host_cpu:$host_os:$ABI" in