diff --git a/api.go b/api.go
index b0faf7b..9888207 100644
--- a/api.go
+++ b/api.go
@@ -25,6 +25,7 @@ func CreateApiHandler(settings *TranslateSettings) func(w http.ResponseWriter, r
 		translation, err := Translate(settings, from, to, text)
 		if err != nil {
 			writeError(w, 500, err)
+			return
 		}
 
 		w.Write([]byte(translation))
diff --git a/web.go b/web.go
index 3411f1a..c9bd178 100644
--- a/web.go
+++ b/web.go
@@ -27,6 +27,7 @@ func CreateWebHandler(tmpl *template.Template, settings *TranslateSettings) func
 		translation, err := Translate(settings, from, to, text)
 		if err != nil {
 			writeError(w, 500, err)
+			return
 		}
 
 		tmpl.ExecuteTemplate(w, "index", indexPageData{Languages, from, to, text, translation})