1 files changed, 5 insertions, 4 deletions
diff --git a/src/liblzma/common/index_decoder.c b/src/liblzma/common/index_decoder.c
index a6bc650e..83c8a3af 100644
--- a/src/liblzma/common/index_decoder.c
+++ b/src/liblzma/common/index_decoder.c
@@ -56,10 +56,11 @@ struct lzma_coder_s {
 static lzma_ret
 index_decode(lzma_coder *coder, lzma_allocator *allocator,
 		const uint8_t *restrict in, size_t *restrict in_pos,
-		size_t in_size, uint8_t *restrict out lzma_attribute((unused)),
-		size_t *restrict out_pos lzma_attribute((unused)),
-		size_t out_size lzma_attribute((unused)),
-		lzma_action action lzma_attribute((unused)))
+		size_t in_size,
+		uint8_t *restrict out lzma_attribute((__unused__)),
+		size_t *restrict out_pos lzma_attribute((__unused__)),
+		size_t out_size lzma_attribute((__unused__)),
+		lzma_action action lzma_attribute((__unused__)))
 {
 	// Similar optimization as in index_encoder.c
 	const size_t in_start = *in_pos;