diff --git a/configure.in b/configure.in
index f33a2bba80..d6e7b004e2 100644
--- a/configure.in
+++ b/configure.in
@@ -524,6 +524,7 @@ BUILD_HDB=no
 BUILD_LDAP=no
 BUILD_META=no
 BUILD_MONITOR=no
+BUILD_NDB=no
 BUILD_NULL=no
 BUILD_PASSWD=no
 BUILD_PERL=no