diff --git a/src/config.h b/src/config.h
index 22f28fe5..cbc78aaa 100644
--- a/src/config.h
+++ b/src/config.h
@@ -71,6 +71,7 @@
  */
 
 #define	DNS_RESOLVER		/* DNS resolver */
+#define NMB_RESOLVER		/* NMB resolver */
 
 /* @END general.h */
 
diff --git a/src/core/config.c b/src/core/config.c
index 20d8fa04..9d40b15e 100644
--- a/src/core/config.c
+++ b/src/core/config.c
@@ -177,3 +177,7 @@ REQUIRE_OBJECT ( relocate );
 #ifdef DNS_RESOLVER
 REQUIRE_OBJECT ( dns );
 #endif
+
+#ifdef NMB_RESOLVER
+REQUIRE_OBJECT ( nmb );
+#endif