diff --git a/servers/slapd/back-ldap/search.c b/servers/slapd/back-ldap/search.c
index 30b949f9f3..b23e6adf32 100644
--- a/servers/slapd/back-ldap/search.c
+++ b/servers/slapd/back-ldap/search.c
@@ -45,6 +45,7 @@
 
 #include "slap.h"
 #include "back-ldap.h"
+#undef ldap_debug	/* silence a warning in ldap-int.h */
 #include "../../../libraries/libldap/ldap-int.h"
 
 static void ldap_send_entry( Backend *be, Operation *op, struct ldapconn *lc,