diff --git a/components/dfs/filesystems/elmfat/dfs_elm.c b/components/dfs/filesystems/elmfat/dfs_elm.c
index 4ace5afd5a237fda9024c4796c3dd5530c5a991f..443ce5bb0bad31b78c97bd64f7a0f4581abaf47f 100644
--- a/components/dfs/filesystems/elmfat/dfs_elm.c
+++ b/components/dfs/filesystems/elmfat/dfs_elm.c
@@ -43,7 +43,7 @@
 #include <dfs_fs.h>
 #include <dfs_def.h>
 
-volatile static rt_device_t disk[_VOLUMES] = {0};
+static rt_device_t disk[_VOLUMES] = {0};
 
 static int elm_result_to_dfs(FRESULT result)
 {