diff --git a/internal/mock_api/authentication/authentication.go b/internal/mock_api/authentication/authentication.go
index 0c183203..6fb7ae3c 100644
--- a/internal/mock_api/authentication/authentication.go
+++ b/internal/mock_api/authentication/authentication.go
@@ -24,7 +24,6 @@ type UserAuthentication struct {
 
 func AuthenticationMiddleware(next mock_api.MockEndpoint) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "application/json")
 		db := r.Context().Value("db").(database.CLIDatabase)
 
 		// skip auth check for unsupported methods
diff --git a/internal/mock_api/endpoints/schedule/ical.go b/internal/mock_api/endpoints/schedule/ical.go
index ff087441..59d0713e 100644
--- a/internal/mock_api/endpoints/schedule/ical.go
+++ b/internal/mock_api/endpoints/schedule/ical.go
@@ -73,7 +73,7 @@ SUMMARY:TwitchDev Monthly Update // July 1, 2021
 DESCRIPTION:Science & Technology.
 CATEGORIES:Science & Technology
 END:VEVENT
-END:VCALENDAR%`
-	w.Header().Add("Content-Type", "text/calendar")
+END:VCALENDAR`
+	w.Header().Set("Content-Type", "text/calendar")
 	w.Write([]byte(body))
 }
diff --git a/internal/mock_api/mock_server/server.go b/internal/mock_api/mock_server/server.go
index c69ff781..7bf2c748 100644
--- a/internal/mock_api/mock_server/server.go
+++ b/internal/mock_api/mock_server/server.go
@@ -100,6 +100,8 @@ func RegisterHandlers(m *http.ServeMux) {
 func loggerMiddleware(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		log.Printf("%v %v", r.Method, r.URL.Path)
+		w.Header().Set("Content-Type", "application/json")
+
 		next.ServeHTTP(w, r)
 	})
 }