diff --git a/services/tuner/TunerDescrambler.cpp b/services/tuner/TunerDescrambler.cpp
index 6b2889d..16338db 100644
--- a/services/tuner/TunerDescrambler.cpp
+++ b/services/tuner/TunerDescrambler.cpp
@@ -97,6 +97,8 @@
     }
 
     Result res = mDescrambler->close();
+    mDescrambler = NULL;
+
     if (res != Result::SUCCESS) {
         return Status::fromServiceSpecificError(static_cast<int32_t>(res));
     }