diff --git a/client/fdfs_file_info.c b/client/fdfs_file_info.c
index cb06e7f..f8b41ae 100644
--- a/client/fdfs_file_info.c
+++ b/client/fdfs_file_info.c
@@ -79,7 +79,7 @@ int main(int argc, char *argv[])
 			szDatetime, sizeof(szDatetime)));
 		printf("file size: %"PRId64"\n", \
 			file_info.file_size);
-		printf("file crc32: %d (0x%08X)\n", \
+		printf("file crc32: %d (0x%08x)\n", \
 			file_info.crc32, file_info.crc32);
 	}