diff --git a/lua-resty-core.spec b/lua-resty-core.spec
index 257c409..2906d20 100644
--- a/lua-resty-core.spec
+++ b/lua-resty-core.spec
@@ -28,7 +28,7 @@ BuildRequires:  lua-macros
 BuildArch:      noarch
 
 %description
-This pure Lua library reimplements part of the ngx_lua module's Nginx API for Lua with LuaJIT FFI
+This NOT pure Lua library reimplements part of the ngx_lua module's Nginx API for Lua with LuaJIT FFI
 and installs the new FFI-based Lua API into the ngx.* and ndk.* namespaces used by the ngx_lua module.
 
 %prep