diff --git a/CHANGES b/CHANGES
index 887f29b2a5..caaabd520b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,5 @@
-4433.	[placeholder]
+4433.	[cleanup]	Report an error when passing an invalid option or
+			view name to "rndc dumpdb". [RT #42958]
 
 4432.	[test]		Hide rndc output on expected failures in logfileconfig
 			system test. [RT #27996]
diff --git a/bin/named/control.c b/bin/named/control.c
index bd2f36b680..5d9027a6ad 100644
--- a/bin/named/control.c
+++ b/bin/named/control.c
@@ -207,7 +207,7 @@ ns_control_docommand(isccc_sexpr_t *message, isc_boolean_t readonly,
 	} else if (command_compare(command, NS_COMMAND_QUERYLOG)) {
 		result = ns_server_togglequerylog(ns_g_server, lex);
 	} else if (command_compare(command, NS_COMMAND_DUMPDB)) {
-		ns_server_dumpdb(ns_g_server, lex);
+		ns_server_dumpdb(ns_g_server, lex, text);
 		result = ISC_R_SUCCESS;
 	} else if (command_compare(command, NS_COMMAND_SECROOTS)) {
 		result = ns_server_dumpsecroots(ns_g_server, lex, text);
diff --git a/bin/named/include/named/server.h b/bin/named/include/named/server.h
index 8fd3899a7d..8550cba424 100644
--- a/bin/named/include/named/server.h
+++ b/bin/named/include/named/server.h
@@ -596,7 +596,7 @@ ns_server_dumpstats(ns_server_t *server);
  * Dump the current cache to the dump file.
  */
 isc_result_t
-ns_server_dumpdb(ns_server_t *server, isc_lex_t *lex);
+ns_server_dumpdb(ns_server_t *server, isc_lex_t *lex, isc_buffer_t **text);
 
 /*%
  * Dump the current security roots to the secroots file.
diff --git a/bin/named/server.c b/bin/named/server.c
index e0ebf18f98..743ef3ad8f 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -9478,12 +9478,13 @@ dumpdone(void *arg, isc_result_t result) {
 }
 
 isc_result_t
-ns_server_dumpdb(ns_server_t *server, isc_lex_t *lex) {
+ns_server_dumpdb(ns_server_t *server, isc_lex_t *lex, isc_buffer_t **text) {
 	struct dumpcontext *dctx = NULL;
 	dns_view_t *view;
 	isc_result_t result;
 	char *ptr;
 	const char *sep;
+	isc_boolean_t found;
 
 	/* Skip the command name. */
 	ptr = next_token(lex, NULL);
@@ -9557,15 +9558,26 @@ ns_server_dumpdb(ns_server_t *server, isc_lex_t *lex) {
 	}
 
  nextview:
+	found = ISC_FALSE;
 	for (view = ISC_LIST_HEAD(server->viewlist);
 	     view != NULL;
 	     view = ISC_LIST_NEXT(view, link))
 	{
 		if (ptr != NULL && strcmp(view->name, ptr) != 0)
 			continue;
+		found = ISC_TRUE;
 		CHECK(add_view_tolist(dctx, view));
 	}
 	if (ptr != NULL) {
+		if (!found) {
+			putstr(text, "view '");
+			putstr(text, ptr);
+			putstr(text, "' not found");
+			putnull(text);
+			result = ISC_R_NOTFOUND;
+			dumpdone(dctx, result);
+			return (result);
+		}
 		ptr = next_token(lex, NULL);
 		if (ptr != NULL)
 			goto nextview;