diff --git a/examples/device/webusb_serial/src/main.c b/examples/device/webusb_serial/src/main.c
index 0c2acd94e..ad10bce61 100644
--- a/examples/device/webusb_serial/src/main.c
+++ b/examples/device/webusb_serial/src/main.c
@@ -84,7 +84,6 @@ static bool web_serial_connected = false;
 
 //------------- prototypes -------------//
 void led_blinking_task(void);
-void cdc_task(void);
 
 /*------------- MAIN -------------*/
 int main(void) {
@@ -101,7 +100,6 @@ int main(void) {
 
   while (1) {
     tud_task(); // tinyusb device task
-    cdc_task();
     led_blinking_task();
   }
 }
@@ -114,16 +112,6 @@ static void echo_all(const uint8_t buf[], uint32_t count) {
     tud_vendor_write_flush();
   }
 
-  // echo to cdc
-  if (tud_cdc_connected()) {
-    for (uint32_t i = 0; i < count; i++) {
-      tud_cdc_write_char(buf[i]);
-      if (buf[i] == '\r') {
-        tud_cdc_write_char('\n');
-      }
-    }
-    tud_cdc_write_flush();
-  }
 }
 
 //--------------------------------------------------------------------+
@@ -226,39 +214,6 @@ void tud_vendor_rx_cb(uint8_t itf, uint8_t const* buffer, uint16_t bufsize) {
   #endif
 }
 
-//--------------------------------------------------------------------+
-// USB CDC
-//--------------------------------------------------------------------+
-void cdc_task(void) {
-  if (tud_cdc_connected()) {
-    // connected and there are data available
-    if (tud_cdc_available()) {
-      uint8_t buf[64];
-
-      uint32_t count = tud_cdc_read(buf, sizeof(buf));
-
-      // echo back to both web serial and cdc
-      echo_all(buf, count);
-    }
-  }
-}
-
-// Invoked when cdc when line state changed e.g connected/disconnected
-void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts) {
-  (void)itf;
-
-  // connected
-  if (dtr && rts) {
-    // print initial message when connected
-    tud_cdc_write_str("\r\nTinyUSB WebUSB device example\r\n");
-  }
-}
-
-// Invoked when CDC interface received data from host
-void tud_cdc_rx_cb(uint8_t itf) {
-  (void)itf;
-}
-
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
diff --git a/examples/device/webusb_serial/src/tusb_config.h b/examples/device/webusb_serial/src/tusb_config.h
index b6cdf7e56..decd56e4c 100644
--- a/examples/device/webusb_serial/src/tusb_config.h
+++ b/examples/device/webusb_serial/src/tusb_config.h
@@ -91,7 +91,7 @@
 #endif
 
 //------------- CLASS -------------//
-#define CFG_TUD_CDC               1
+#define CFG_TUD_CDC               0
 #define CFG_TUD_MSC               0
 #define CFG_TUD_HID               0
 #define CFG_TUD_MIDI              0
diff --git a/examples/device/webusb_serial/src/usb_descriptors.c b/examples/device/webusb_serial/src/usb_descriptors.c
index 0ef41a68e..bb25fc139 100644
--- a/examples/device/webusb_serial/src/usb_descriptors.c
+++ b/examples/device/webusb_serial/src/usb_descriptors.c
@@ -76,8 +76,6 @@ uint8_t const * tud_descriptor_device_cb(void)
 //--------------------------------------------------------------------+
 enum
 {
-  ITF_NUM_CDC = 0,
-  ITF_NUM_CDC_DATA,
   ITF_NUM_VENDOR,
   ITF_NUM_TOTAL
 };
@@ -128,11 +126,8 @@ uint8_t const desc_configuration[] =
   // Config number, interface count, string index, total length, attribute, power in mA
   TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
-  // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, 0x80 | EPNUM_CDC_IN, TUD_OPT_HIGH_SPEED ? 512 : 64),
-
   // Interface number, string index, EP Out & IN address, EP size
-  TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 5, EPNUM_VENDOR_OUT, 0x80 | EPNUM_VENDOR_IN, TUD_OPT_HIGH_SPEED ? 512 : 64)
+  TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 4, EPNUM_VENDOR_OUT, 0x80 | EPNUM_VENDOR_IN, TUD_OPT_HIGH_SPEED ? 512 : 64)
 };
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
@@ -234,7 +229,6 @@ static char const *string_desc_arr[] =
   "TinyUSB",                     // 1: Manufacturer
   "TinyUSB Device",              // 2: Product
   NULL,                          // 3: Serials will use unique ID if possible
-  "TinyUSB CDC",                 // 4: CDC Interface
   "TinyUSB WebUSB"               // 5: Vendor Interface
 };