diff --git a/include/portable.h.in b/include/portable.h.in
index 3e66dd0f0a..9fb57e6f93 100644
--- a/include/portable.h.in
+++ b/include/portable.h.in
@@ -1034,6 +1034,9 @@
 /* define to support SQL backend */
 #undef SLAPD_SQL
 
+/* define for In-Directory Access Logging overlay */
+#undef SLAPD_OVER_ACCESSLOG
+
 /* define for Dynamic Group overlay */
 #undef SLAPD_OVER_DENYOP