diff --git a/src/googleplay/java/com/android/vending/billing/IabHelper.java b/src/googleplay/java/com/android/vending/billing/IabHelper.java
index df792b18b..3c5eea685 100644
--- a/src/googleplay/java/com/android/vending/billing/IabHelper.java
+++ b/src/googleplay/java/com/android/vending/billing/IabHelper.java
@@ -312,7 +312,7 @@ public class IabHelper {
         mSetupDone = false;
         if (mServiceConn != null) {
             logDebug("Unbinding from service.");
-            if (mContext != null) mContext.unbindService(mServiceConn);
+            if (mContext != null && mService != null) mContext.unbindService(mServiceConn);
         }
         mDisposed = true;
         mContext = null;