cmd/sgblog/http.go | 4 ++--

diff --git a/cmd/sgblog/http.go b/cmd/sgblog/http.go
index dd97cc8500de7aeac96f7bb5f10845110ce110353247870bf37ea7053f44a296..9e5671cbca7ceda714547a1eeae6f5183aad3003e2375e64ec17f6f171d7a0e2 100644
--- a/cmd/sgblog/http.go
+++ b/cmd/sgblog/http.go
@@ -171,8 +171,8 @@ 	if err != nil {
 		log.Fatalln(err)
 	}
 
-	pathInfo, exists := os.LookupEnv("PATH_INFO")
-	if !exists {
+	pathInfo := os.Getenv("PATH_INFO")
+	if len(pathInfo) == 0 {
 		pathInfo = "/"
 	}
 	queryValues, err := url.ParseQuery(os.Getenv("QUERY_STRING"))