diff --git a/lib/libarchive/archive_write_set_compression_gzip.c b/lib/libarchive/archive_write_set_compression_gzip.c
index 701d6a8d9dae..6ecb4eab420f 100644
--- a/lib/libarchive/archive_write_set_compression_gzip.c
+++ b/lib/libarchive/archive_write_set_compression_gzip.c
@@ -365,7 +365,6 @@ archive_compressor_gzip_finish(struct archive_write *a)
 		block_length = state->stream.next_out - state->compressed;
 
 		/* Tricky calculation to determine size of last block. */
-		target_block_length = block_length;
 		if (a->bytes_in_last_block <= 0)
 			/* Default or Zero: pad to full block */
 			target_block_length = a->bytes_per_block;