diff --git a/src/lzma/process.c b/src/lzma/process.c
index 10a76b74..18181826 100644
--- a/src/lzma/process.c
+++ b/src/lzma/process.c
@@ -175,7 +175,7 @@ single_init(thread_data *t)
 		} else {
 			lzma_options_stream stream = {
 				.check = opt_check,
-				.has_crc32 = true,
+				.has_crc32 = opt_check != LZMA_CHECK_NONE,
 				.uncompressed_size = uncompressed_size,
 				.alignment = 0,
 			};