diff --git a/test/httptest.lua b/test/httptest.lua
index 8b84f84..1eb4b6a 100644
--- a/test/httptest.lua
+++ b/test/httptest.lua
@@ -49,26 +49,26 @@ local request, response, ignore, expect, index, prefix, cgiprefix
 
 local t = socket._time()
 
-HOST = HOST or "localhost"
+host = host or "localhost"
 prefix = prefix or "/luasocket"
 cgiprefix = cgiprefix or "/luasocket/cgi"
 index = readfile("test/index.html")
 
 io.write("testing request uri correctness: ")
 local forth = cgiprefix .. "/request-uri?" .. "this+is+the+query+string"
-local back = socket.http.get("http://" .. HOST .. forth)
+local back = socket.http.get("http://" .. host .. forth)
 if similar(back, forth) then print("ok")
 else fail("failed!") end
 
 io.write("testing query string correctness: ")
 forth = "this+is+the+query+string"
-back = socket.http.get("http://" .. HOST .. cgiprefix .. "/query-string?" .. forth)
+back = socket.http.get("http://" .. host .. cgiprefix .. "/query-string?" .. forth)
 if similar(back, forth) then print("ok")
 else fail("failed!") end
 
 io.write("testing document retrieval: ")
 request = {
-	url = "http://" .. HOST .. prefix .. "/index.html"
+	url = "http://" .. host .. prefix .. "/index.html"
 }
 expect = {
 	body = index,
@@ -82,7 +82,7 @@ check_request(request, expect, ignore)
 
 io.write("testing http redirection: ")
 request = {
-	url = "http://" .. HOST .. prefix
+	url = "http://" .. host .. prefix
 }
 expect = {
 	body = index,
@@ -97,7 +97,7 @@ check_request(request, expect, ignore)
 
 io.write("testing automatic auth failure: ")
 request = {
-    url = "http://really:wrong@" .. HOST .. prefix .. "/auth/index.html"
+    url = "http://really:wrong@" .. host .. prefix .. "/auth/index.html"
 }
 expect = {
     code = 401
@@ -111,7 +111,7 @@ check_request(request, expect, ignore)
 
 io.write("testing http redirection failure: ")
 request = {
-	url = "http://" .. HOST .. prefix,
+	url = "http://" .. host .. prefix,
 	stay = 1
 }
 expect = {
@@ -137,7 +137,7 @@ check_request(request, expect, ignore)
 
 io.write("testing invalid url: ")
 request = {
-	url = HOST .. prefix
+	url = host .. prefix
 }
 local c, e = socket.connect("", 80)
 expect = {
@@ -148,7 +148,7 @@ check_request(request, expect, ignore)
 
 io.write("testing document not found: ")
 request = {
-	url = "http://" .. HOST .. "/wrongdocument.html"
+	url = "http://" .. host .. "/wrongdocument.html"
 }
 expect = {
 	code = 404
@@ -162,7 +162,7 @@ check_request(request, expect, ignore)
 
 io.write("testing auth failure: ")
 request = {
-	url = "http://" .. HOST .. prefix .. "/auth/index.html"
+	url = "http://" .. host .. prefix .. "/auth/index.html"
 }
 expect = {
 	code = 401
@@ -176,7 +176,7 @@ check_request(request, expect, ignore)
 
 io.write("testing manual basic auth: ")
 request = {
-	url = "http://" .. HOST .. prefix .. "/auth/index.html",
+	url = "http://" .. host .. prefix .. "/auth/index.html",
 	headers = {
 		authorization = "Basic " .. socket.code.base64("luasocket:password")
 	}
@@ -193,7 +193,7 @@ check_request(request, expect, ignore)
 
 io.write("testing automatic basic auth: ")
 request = {
-	url = "http://luasocket:password@" .. HOST .. prefix .. "/auth/index.html"
+	url = "http://luasocket:password@" .. host .. prefix .. "/auth/index.html"
 }
 expect = {
 	code = 200,
@@ -207,7 +207,7 @@ check_request(request, expect, ignore)
 
 io.write("testing auth info overriding: ")
 request = {
-	url = "http://really:wrong@" .. HOST .. prefix .. "/auth/index.html",
+	url = "http://really:wrong@" .. host .. prefix .. "/auth/index.html",
 	user = "luasocket",
 	password = "password"
 }
@@ -223,7 +223,7 @@ check_request(request, expect, ignore)
 
 io.write("testing cgi output retrieval (probably chunked...): ")
 request = {
-    url = "http://" .. HOST .. cgiprefix .. "/cat-index-html"
+    url = "http://" .. host .. cgiprefix .. "/cat-index-html"
 }
 expect = {
 	body = index,
@@ -237,7 +237,7 @@ check_request(request, expect, ignore)
 
 io.write("testing redirect loop: ")
 request = {
-    url = "http://" .. HOST .. cgiprefix .. "/redirect-loop"
+    url = "http://" .. host .. cgiprefix .. "/redirect-loop"
 }
 expect = {
     code = 302
@@ -251,7 +251,7 @@ check_request(request, expect, ignore)
 
 io.write("testing post method: ")
 request = {
-	url = "http://" .. HOST .. cgiprefix .. "/cat",
+	url = "http://" .. host .. cgiprefix .. "/cat",
 	method = "POST",
 	body = index
 }
@@ -267,7 +267,7 @@ check_request(request, expect, ignore)
 
 io.write("testing wrong scheme: ")
 request = {
-	url = "wrong://" .. HOST .. cgiprefix .. "/cat",
+	url = "wrong://" .. host .. cgiprefix .. "/cat",
 	method = "GET"
 }
 expect = {
@@ -279,24 +279,24 @@ check_request(request, expect, ignore)
 
 local body
 io.write("testing simple get function: ")
-body = socket.http.get("http://" .. HOST .. prefix .. "/index.html")
+body = socket.http.get("http://" .. host .. prefix .. "/index.html")
 check(body == index)
 
 io.write("testing simple get function with table args: ")
 body = socket.http.get {
-	url = "http://really:wrong@" .. HOST .. prefix .. "/auth/index.html",
+	url = "http://really:wrong@" .. host .. prefix .. "/auth/index.html",
 	user = "luasocket",
 	password = "password"
 }
 check(body == index)
 
 io.write("testing simple post function: ")
-body = socket.http.post("http://" .. HOST .. cgiprefix .. "/cat", index)
+body = socket.http.post("http://" .. host .. cgiprefix .. "/cat", index)
 check(body == index)
 
 io.write("testing simple post function with table args: ")
 body = socket.http.post {
-	url = "http://" .. HOST .. cgiprefix .. "/cat",
+	url = "http://" .. host .. cgiprefix .. "/cat",
 	body = index
 }
 check(body == index)