diff --git a/examples/device/webusb/src/usb_descriptors.c b/examples/device/webusb/src/usb_descriptors.c
index 97c05e5d..cd9b6bc1 100644
--- a/examples/device/webusb/src/usb_descriptors.c
+++ b/examples/device/webusb/src/usb_descriptors.c
@@ -180,20 +180,12 @@ uint16_t const* tud_descriptor_string_cb(uint8_t index)
 //--------------------------------------------------------------------+
 #define URL  "github.com/hathach/tinyusb"
 
-typedef struct TU_ATTR_PACKED
-{
-  uint8_t bLength;
-  uint8_t bDescriptorType;
-  uint8_t bScheme;
-  char    url[];
-} tusb_desc_webusb_url_t;
-
 const tusb_desc_webusb_url_t desc_url =
 {
-  .bLength = 3 + sizeof(URL) - 1,
+  .bLength         = 3 + sizeof(URL) - 1,
   .bDescriptorType = 3, // WEBUSB URL type
-  .bScheme = 1, // 0: http, 1: https
-  .url = URL
+  .bScheme         = 1, // 0: http, 1: https
+  .url             = URL
 };
 
 bool tud_control_vendor_request_cb(uint8_t rhport, tusb_control_request_t const * request)
diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h
index 7270ec58..2776eaa8 100644
--- a/src/common/tusb_types.h
+++ b/src/common/tusb_types.h
@@ -228,7 +228,7 @@ enum
 };
 
 //--------------------------------------------------------------------+
-// USB Standard Descriptors
+// USB Descriptors
 //--------------------------------------------------------------------+
 
 /// USB Device Descriptor
@@ -360,13 +360,7 @@ typedef struct TU_ATTR_PACKED
   uint8_t iFunction         ; ///< Index of the string descriptor describing the interface association.
 } tusb_desc_interface_assoc_t;
 
-/// USB Header Descriptor
-typedef struct TU_ATTR_PACKED
-{
-  uint8_t  bLength         ; ///< Size of this descriptor in bytes
-  uint8_t  bDescriptorType ; ///< Descriptor Type
-} tusb_desc_header_t;
-
+// USB String Descriptor
 typedef struct TU_ATTR_PACKED
 {
   uint8_t  bLength         ; ///< Size of this descriptor in bytes
@@ -374,6 +368,7 @@ typedef struct TU_ATTR_PACKED
   uint16_t unicode_string[];
 } tusb_desc_string_t;
 
+// USB Binary Device Object Store (BOS)
 typedef struct TU_ATTR_PACKED
 {
   uint8_t bLength;
@@ -384,6 +379,15 @@ typedef struct TU_ATTR_PACKED
   uint8_t CapabilityData[];
 } tusb_desc_bos_platform_t;
 
+// USB WebuSB URL Descriptor
+typedef struct TU_ATTR_PACKED
+{
+  uint8_t bLength;
+  uint8_t bDescriptorType;
+  uint8_t bScheme;
+  char    url[];
+} tusb_desc_webusb_url_t;
+
 /*------------------------------------------------------------------*/
 /* Types
  *------------------------------------------------------------------*/