diff --git a/include/rapidjson/internal/regex.h b/include/rapidjson/internal/regex.h
index 1369ea2..6d110bd 100644
--- a/include/rapidjson/internal/regex.h
+++ b/include/rapidjson/internal/regex.h
@@ -29,6 +29,7 @@ RAPIDJSON_DIAG_OFF(implicit-fallthrough)
 #ifdef __GNUC__
 RAPIDJSON_DIAG_PUSH
 RAPIDJSON_DIAG_OFF(effc++)
+RAPIDJSON_DIAG_OFF(implicit-fallthrough)
 #endif
 
 #ifdef _MSC_VER