1 files changed, 2 insertions, 0 deletions

diff --git a/linden/indra/llmessage/llhttpassetstorage.cpp b/linden/indra/llmessage/llhttpassetstorage.cpp
index 80598c6..49896c6 100644
--- a/linden/indra/llmessage/llhttpassetstorage.cpp
+++ b/linden/indra/llmessage/llhttpassetstorage.cpp
@@ -334,6 +334,8 @@ void LLHTTPAssetRequest::finishCompressedUpload()
 
 size_t LLHTTPAssetRequest::readCompressedData(void* data, size_t size)
 {
+        llassert(mZInitialized);
+
         mZStream.next_out = (Bytef*)data;
         mZStream.avail_out = size;