diff --git a/wolfcrypt/src/compress.c b/wolfcrypt/src/compress.c
index 8de92a13a..766e0c912 100644
--- a/wolfcrypt/src/compress.c
+++ b/wolfcrypt/src/compress.c
@@ -286,7 +286,7 @@ int wc_DeCompressDynamic(byte** out, int maxSz, int memoryType,
             XFREE(tmp, heap, memoryType);
             tmp   = newTmp;
             stream.next_out  = tmp + stream.total_out;
-            stream.avail_out = stream.avail_out + (uInt)tmpSz;
+            stream.avail_out = stream.avail_out + (uInt)inSz;
             tmpSz  = newSz;
             result = inflate(&stream, Z_BLOCK);
         }