diff --git a/nginx/conf.d/include/location-hns b/nginx/conf.d/include/location-hns
index fbd44b7..a7c1eb0 100644
--- a/nginx/conf.d/include/location-hns
+++ b/nginx/conf.d/include/location-hns
@@ -18,7 +18,7 @@ rewrite_by_lua_block {
         ngx.status = (hnsres_err and ngx.HTTP_INTERNAL_SERVER_ERROR) or hnsres_res.status
         -- do not send response on unauthorized error (status code 401)
         -- otherwise we will not be able to display custom error page
-        if ngx.status != ngx.HTTP_UNAUTHORIZED then
+        if ngx.status ~= ngx.HTTP_UNAUTHORIZED then
             ngx.header["content-type"] = "text/plain"
             ngx.say(hnsres_err or hnsres_res.body)
         end
@@ -55,7 +55,7 @@ rewrite_by_lua_block {
             ngx.status = (registry_err and ngx.HTTP_INTERNAL_SERVER_ERROR) or registry_res.status
             -- do not send response on unauthorized error (status code 401)
             -- otherwise we will not be able to display custom error page
-            if ngx.status != ngx.HTTP_UNAUTHORIZED then
+            if ngx.status ~= ngx.HTTP_UNAUTHORIZED then
                 ngx.header["content-type"] = "text/plain"
                 ngx.say(registry_err or registry_res.body)
             end
diff --git a/nginx/conf.d/server/server.dnslink b/nginx/conf.d/server/server.dnslink
index 2a8685c..90603da 100644
--- a/nginx/conf.d/server/server.dnslink
+++ b/nginx/conf.d/server/server.dnslink
@@ -26,7 +26,7 @@ location / {
                     ngx.status = (err and ngx.HTTP_INTERNAL_SERVER_ERROR) or res.status
                     -- do not send response on unauthorized error (status code 401)
                     -- otherwise we will not be able to display custom error page
-                    if ngx.status != ngx.HTTP_UNAUTHORIZED then
+                    if ngx.status ~= ngx.HTTP_UNAUTHORIZED then
                         ngx.header["content-type"] = "text/plain"
                         ngx.say(err or res.body)
                     end