diff --git a/proprietary/wvm/WVMExtractorImpl.cpp b/proprietary/wvm/WVMExtractorImpl.cpp
index 0bcef897..27d65bbe 100644
--- a/proprietary/wvm/WVMExtractorImpl.cpp
+++ b/proprietary/wvm/WVMExtractorImpl.cpp
@@ -264,6 +264,11 @@ status_t WVMExtractorImpl::readMetaData()
     if (result != WV_Status_OK)
         return ERROR_MALFORMED;
 
+    if (numChannels == 0) {
+        ALOGD("numChannels is 0!");
+        return ERROR_MALFORMED;
+    }
+
     std::string durationString = WV_Info_GetDuration(mSession, "sec");
     if (durationString == "") {
         // We won't have a duration for live streams, and Stagefright doesn't seem to