diff --git a/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.h b/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.h
index 891c331..e380bc6 100644
--- a/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.h
+++ b/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.h
@@ -32,7 +32,7 @@
     ~AidlConversionVisualizer() {}
 
   private:
-    uint32_t mCaptureSize;
+    uint32_t mCaptureSize = 0;
     status_t setParameter(utils::EffectParamReader& param) override;
     status_t getParameter(utils::EffectParamWriter& param) override;
     status_t visualizerCapture(uint32_t* replySize, void* pReplyData) override;