diff --git a/src/com/android/nfc/NfcService.java b/src/com/android/nfc/NfcService.java
index a7a7a50..b822afe 100755
--- a/src/com/android/nfc/NfcService.java
+++ b/src/com/android/nfc/NfcService.java
@@ -936,6 +936,10 @@
         public void setReaderMode(IBinder binder, IAppCallback callback, int flags, Bundle extras)
                 throws RemoteException {
             synchronized (NfcService.this) {
+                if (!isNfcEnabled()) {
+                    Log.e(TAG, "setReaderMode() called while NFC is not enabled.");
+                    return;
+                }
                 if (flags != 0) {
                     try {
                         mReaderModeParams = new ReaderModeParams();