diff --git a/logger_test.go b/logger_test.go
index 38cdee2..6e51b2a 100644
--- a/logger_test.go
+++ b/logger_test.go
@@ -148,7 +148,7 @@ func newRouter(logger *zap.Logger) *chi.Mux {
 					ip, _, _ := net.SplitHostPort(r.RemoteAddr)
 					return ip
 				}
-				return r.Header.Get(http.CanonicalHeaderKey("X-Forwarded-For"))
+				return r.Header.Get("X-Forwarded-For")
 			}),
 		))
 		r.Get("/info", func(w http.ResponseWriter, r *http.Request) {