diff --git a/admin/api/handlers.go b/admin/api/handlers.go
index c0e02bd8..21ee559e 100644
--- a/admin/api/handlers.go
+++ b/admin/api/handlers.go
@@ -67,7 +67,7 @@ func apiHandler(f DispatchFunction) func(http.ResponseWriter, *http.Request, htt
 			w.WriteHeader(resStatus)
 			w.Write(bts)
 		} else if j, err := json.Marshal(ret); err != nil {
-			http.Error(w, fmt.Sprintf("{\"errmsg\":\"%q\"}", err), http.StatusInternalServerError)
+			http.Error(w, fmt.Sprintf("{\"errmsg\":%q}", err), http.StatusInternalServerError)
 		} else {
 			w.WriteHeader(resStatus)
 			w.Write(j)
diff --git a/admin/time.go b/admin/time.go
index 4acc2476..29042e7d 100644
--- a/admin/time.go
+++ b/admin/time.go
@@ -15,7 +15,7 @@ import (
 func init() {
 	api.Router().GET("/time.json", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
 		if config, err := settings.ReadSettings(path.Join(api.TeamsDir, settings.SettingsFile)); err != nil {
-			http.Error(w, fmt.Sprintf("{\"errmsg\":\"%q\"}", err), http.StatusInternalServerError)
+			http.Error(w, fmt.Sprintf("{\"errmsg\":%q}", err), http.StatusInternalServerError)
 		} else {
 			time.ChallengeStart = config.Start
 			time.ChallengeEnd = config.End
diff --git a/frontend/time/time.go b/frontend/time/time.go
index 42db8dc2..a044eea2 100644
--- a/frontend/time/time.go
+++ b/frontend/time/time.go
@@ -25,7 +25,7 @@ func (t TimeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 
 	if j, err := json.Marshal(timeObject{ChallengeStart.Unix(), time.Now().Unix(), int(ChallengeEnd.Sub(ChallengeStart).Seconds())}); err != nil {
-		http.Error(w, fmt.Sprintf("{\"errmsg\":\"%q\"}", err), http.StatusInternalServerError)
+		http.Error(w, fmt.Sprintf("{\"errmsg\":%q}", err), http.StatusInternalServerError)
 	} else {
 		w.WriteHeader(http.StatusOK)
 		w.Write(j)