diff --git a/lib/roles/ws/client-parser-ws.c b/lib/roles/ws/client-parser-ws.c
index f569532ec..f67927b2a 100644
--- a/lib/roles/ws/client-parser-ws.c
+++ b/lib/roles/ws/client-parser-ws.c
@@ -637,6 +637,7 @@ utf8_fail:
 
 			if (n == PMDR_DID_NOTHING
 #if !defined(LWS_WITHOUT_EXTENSIONS)
+			    || n == PMDR_NOTHING_WE_SHOULD_DO
 			    || n == PMDR_UNKNOWN
 #endif
 			)