diff --git a/include/portable.h.in b/include/portable.h.in
index f85ad5ad85..e0103b67fa 100644
--- a/include/portable.h.in
+++ b/include/portable.h.in
@@ -127,9 +127,6 @@
 /* define if you have crypt */
 #undef HAVE_CRYPT
 
-/* define if MDBM is available */
-#undef HAVE_MDBM
-
 /* define if you have GDBM */
 #undef HAVE_GDBM
 
@@ -580,6 +577,9 @@
 /* define if you have (or want) no threads */
 #undef NO_THREADS
 
+/* define if MDBM is available */
+#undef HAVE_MDBM
+
 /* define if you have -lwrap */
 #undef HAVE_TCPD