diff --git a/components/dfs/dfs_v2/include/dfs_seq_file.h b/components/dfs/dfs_v2/include/dfs_seq_file.h
index 6dbc30f24d..f0c1de7dde 100644
--- a/components/dfs/dfs_v2/include/dfs_seq_file.h
+++ b/components/dfs/dfs_v2/include/dfs_seq_file.h
@@ -56,7 +56,7 @@ static inline void dfs_seq_setwidth(struct dfs_seq_file *seq, size_t size)
 
 int dfs_seq_open(struct dfs_file *file, const struct dfs_seq_ops *ops);
 ssize_t dfs_seq_read(struct dfs_file *file, void *buf, size_t size, off_t *pos);
-ssize_t dfs_seq_lseek(struct dfs_file *file, off_t offset, int whence);
+off_t dfs_seq_lseek(struct dfs_file *file, off_t offset, int whence);
 int dfs_seq_release(struct dfs_file *file);
 int dfs_seq_write(struct dfs_seq_file *seq, const void *data, size_t len);
 
diff --git a/components/dfs/dfs_v2/src/dfs_seq_file.c b/components/dfs/dfs_v2/src/dfs_seq_file.c
index 9521f53038..2980b03cc1 100644
--- a/components/dfs/dfs_v2/src/dfs_seq_file.c
+++ b/components/dfs/dfs_v2/src/dfs_seq_file.c
@@ -256,7 +256,7 @@ Enomem:
     goto Done;
 }
 
-ssize_t dfs_seq_lseek(struct dfs_file *file, off_t offset, int whence)
+off_t dfs_seq_lseek(struct dfs_file *file, off_t offset, int whence)
 {
     struct dfs_seq_file *seq = file->data;
     off_t retval = -EINVAL;