diff --git a/configure.ac b/configure.ac
index 85fc6e1f046bcaf8871d54ed2e4639287a1fc3cf..6088f7776304e5b6bb04aeb71300e8f2fa06c759 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1289,8 +1289,8 @@ if test "x$with_gnutls" != "xno"; then
     with_gnutls=yes
   fi
 
+  CFLAGS="$old_cflags"
   LIBS="$old_libs"
-  CFLAGS="$old_CFLAGS"
 fi
 
 if test "x$with_gnutls" = "xyes" ; then