diff --git a/sys/include/net/nanocoap_vfs.h b/sys/include/net/nanocoap_vfs.h
index 6a615291cef7..c049c7720e27 100644
--- a/sys/include/net/nanocoap_vfs.h
+++ b/sys/include/net/nanocoap_vfs.h
@@ -71,7 +71,7 @@ int nanocoap_vfs_put_url(const char *url, const char *src,
  *
  * @param[in]   sock         Connection to the server
  * @param[in]   path         Remote query path to the resource
- * @param[in]   src     Path to the source file
+ * @param[in]   src          Path to the source file
  * @param[in]   work_buf     Buffer to read file blocks into
  * @param[in]   work_buf_len Size of the buffer. Should be 1 byte more
  *                           than the desired CoAP blocksize.