diff --git a/src/nvim/lua/spell.c b/src/nvim/lua/spell.c
index b84124bc19..3a63f61200 100644
--- a/src/nvim/lua/spell.c
+++ b/src/nvim/lua/spell.c
@@ -1,3 +1,5 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
 
 #include <lua.h>
 #include <lauxlib.h>