diff --git a/mythtv/libs/libmythtv/ringbuffer.h b/mythtv/libs/libmythtv/ringbuffer.h
index 6073c56ddb3..2b0cd9272ee 100644
--- a/mythtv/libs/libmythtv/ringbuffer.h
+++ b/mythtv/libs/libmythtv/ringbuffer.h
@@ -47,7 +47,7 @@ class MTV_PUBLIC RingBuffer : protected QThread
                               bool usereadahead = true,
                               int timeout_ms = kDefaultOpenTimeout,
                               bool stream_only = false);
-    ~RingBuffer();
+    virtual ~RingBuffer();
 
     // Sets
     void SetWriteBufferSize(int newSize);