diff --git a/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java b/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
index a6251675..b5e08a8b 100644
--- a/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
+++ b/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
@@ -150,7 +150,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener,
 
     private String mVersion;
 
-    private final String mUrl;
+    private String mUrl;
 
     private final String mApiKey;
 
@@ -200,6 +200,10 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener,
         mOnConfigChangedListener = configListener;
     }
 
+    public void setWebGuiUrl(String newUrl) {
+        mUrl = newUrl;
+    }
+
     /**
      * Number of previous calls to {@link #tryIsAvailable()}.
      */
diff --git a/src/main/java/com/nutomic/syncthingandroid/syncthing/SyncthingService.java b/src/main/java/com/nutomic/syncthingandroid/syncthing/SyncthingService.java
index 6f5db56f..205c4d4d 100644
--- a/src/main/java/com/nutomic/syncthingandroid/syncthing/SyncthingService.java
+++ b/src/main/java/com/nutomic/syncthingandroid/syncthing/SyncthingService.java
@@ -227,8 +227,10 @@ public class SyncthingService extends Service implements
             if (mConfig != null) {
                 mCurrentState = State.STARTING;
 
-                if (mApi != null)
+                if (mApi != null) {
                     registerOnWebGuiAvailableListener(mApi);
+                    mApi.setWebGuiUrl(mConfig.getWebGuiUrl());
+                }
                 if (mEventProcessor != null)
                     registerOnWebGuiAvailableListener(mEventProcessor);
                 new PollWebGuiAvailableTaskImpl(getFilesDir() + "/" + HTTPS_CERT_FILE)