diff --git a/CPP/7zip/Compress/ZstdDecoder.cpp b/CPP/7zip/Compress/ZstdDecoder.cpp
index 231ac23a..6430c817 100644
--- a/CPP/7zip/Compress/ZstdDecoder.cpp
+++ b/CPP/7zip/Compress/ZstdDecoder.cpp
@@ -127,7 +127,10 @@ HRESULT CDecoder::CodeSpec(ISequentialInStream * inStream,
       if (zOut.pos) {
         RINOK(WriteStream(outStream, _dstBuf, zOut.pos));
         _processedOut += zOut.pos;
-        RINOK(progress->SetRatioInfo(&_processedIn, &_processedOut));
+        if (progress)
+        {
+          RINOK(progress->SetRatioInfo(&_processedIn, &_processedOut));
+        }
       }
 
       /* finished with buffer */