diff --git a/lib/libc/net/nsdispatch.c b/lib/libc/net/nsdispatch.c
--- a/lib/libc/net/nsdispatch.c
+++ b/lib/libc/net/nsdispatch.c
@@ -398,6 +398,8 @@
 		    "_nss_cache_cycle_prevention_function");
 		dlclose(handle);
 	}
+	/* Squelch any error string from this libc-internal lookup. */
+	(void)dlerror();
 #endif
 fin:
 	if (isthreaded) {