diff --git a/core/src/main/java/de/danoeh/antennapod/core/util/flattr/FlattrServiceCreator.java b/core/src/main/java/de/danoeh/antennapod/core/util/flattr/FlattrServiceCreator.java
index e4818214e..97958eea7 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/util/flattr/FlattrServiceCreator.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/util/flattr/FlattrServiceCreator.java
@@ -1,11 +1,13 @@
 package de.danoeh.antennapod.core.util.flattr;
 
 import android.util.Log;
-import de.danoeh.antennapod.core.BuildConfig;
+
 import org.shredzone.flattr4j.FlattrFactory;
 import org.shredzone.flattr4j.FlattrService;
 import org.shredzone.flattr4j.oauth.AccessToken;
 
+import de.danoeh.antennapod.core.BuildConfig;
+
 /** Ensures that only one instance of the FlattrService class exists at a time */
 
 public class FlattrServiceCreator {
@@ -13,11 +15,14 @@ public class FlattrServiceCreator {
 	
 	private static volatile FlattrService flattrService;
 	
-	public static FlattrService getService(AccessToken token) {
-		return FlattrFactory.getInstance().createFlattrService(token);
+	public synchronized static FlattrService getService(AccessToken token) {
+		if (flattrService == null) {
+			flattrService = FlattrFactory.getInstance().createFlattrService(token);
+		}
+		return flattrService;
 	}
 	
-	public static void deleteFlattrService() {
+	public synchronized static void deleteFlattrService() {
 		if (BuildConfig.DEBUG) Log.d(TAG, "Deleting service instance");
 		flattrService = null;
 	}