diff --git a/lrzip.c b/lrzip.c
index e455ce0..f692a67 100644
--- a/lrzip.c
+++ b/lrzip.c
@@ -326,12 +326,14 @@ static bool fwrite_stdout(rzip_control *control, void *buf, i64 len)
 
 	total = 0;
 	while (len > 0) {
+		ssize_t wrote;
+
 		if (len > one_g)
 			ret = one_g;
 		else
 			ret = len;
-		ret = fwrite(offset_buf, 1, ret, control->outFILE);
-		if (unlikely(ret <= 0))
+		wrote = fwrite(offset_buf, 1, ret, control->outFILE);
+		if (unlikely(wrote != ret))
 			fatal_return(("Failed to fwrite in fwrite_stdout\n"), false);
 		len -= ret;
 		offset_buf += ret;