diff --git a/server.go b/server.go
index 309ac34..6ec6549 100644
--- a/server.go
+++ b/server.go
@@ -65,7 +65,7 @@ func checkTokenAndLog(handler http.Handler) http.Handler {
 			return
 		}
 
-		log.Printf("%s %s %s\n", r.RemoteAddr, r.Method, strings.Split(r.URL, "?")[0])
+		log.Printf("%s %s %s\n", r.RemoteAddr, r.Method, strings.Split(r.URL.String(), "?")[0])
 		handler.ServeHTTP(w, r)
 	})
 }
diff --git a/templates/config.html b/templates/config.html
index 2d64444..9018811 100644
--- a/templates/config.html
+++ b/templates/config.html
@@ -28,7 +28,7 @@
   {{$errors := .Errors}}
   {{range $i, $schema := .Schema}}
     <div class="form-group">
-      <label for="{{$schema.Name}}">{{$schema.Description}}</label>
+      <label for="{{$schema.Name}}">{{$schema.Description}}:</label>
       {{if $schema.FixedValue}}
         <input type="text"
                disabled="disabled"
@@ -48,6 +48,12 @@
         </label>
       {{else if $schema.IsPassword}}
         <input type="password"
+               class="form-control"
+               name="{{$schema.Name}}"
+               id="{{$schema.Name}}"
+               placeholder="(not modified if left empty)" />
+      {{else if $schema.IsNumeric}}
+        <input type="number"
                class="form-control"
                name="{{$schema.Name}}"
                id="{{$schema.Name}}"
diff --git a/web.go b/web.go
index 9983855..8f64043 100644
--- a/web.go
+++ b/web.go
@@ -262,8 +262,13 @@ func configForm(w http.ResponseWriter, r *http.Request,
 
 		for _, schema := range data.Schema {
 			field := schema.Name
+			old_value := data.Config[field]
 			data.Config[field] = strings.Join(r.Form[field], "")
-			if data.Config[field] == "" {
+			if schema.IsPassword {
+				if data.Config[field] == "" {
+					data.Config[field] = old_value
+				}
+			} else if data.Config[field] == "" {
 				if schema.Required {
 					ok = false
 					data.Errors[field] = "This field is required"