diff --git a/components/dfs/include/dfs.h b/components/dfs/include/dfs.h
index cc8248699ce247bb68f8742f5029ebadd066e007..ff7de473b41d2842ef65b7dd613c4f1b817206b5 100644
--- a/components/dfs/include/dfs.h
+++ b/components/dfs/include/dfs.h
@@ -21,6 +21,8 @@
 extern "C" {
 #endif
 
+#define NO_WORKING_DIR  "system does not support working directory\n"
+
 char *dfs_normalize_path(const char *directory, const char *filename);
 const char *dfs_subdir(const char *directory, const char *filename);
 
diff --git a/components/dfs/src/dfs.c b/components/dfs/src/dfs.c
index 0cccddb0f71f300a7fb3173b767d6623f5b93a1b..8ddb57db17f86cbe7681c8a55aa5ea63f95c767d 100644
--- a/components/dfs/src/dfs.c
+++ b/components/dfs/src/dfs.c
@@ -16,8 +16,6 @@
 #include <dfs_fs.h>
 #include <dfs_file.h>
 
-#define NO_WORKING_DIR  "system does not support working directory\n"
-
 /* Global variables */
 const struct dfs_filesystem_operation *filesystem_operation_table[DFS_FILESYSTEM_TYPES_MAX];
 struct dfs_filesystem filesystem_table[DFS_FILESYSTEMS_MAX];