diff --git a/embassy-usb/src/class/cdc_acm.rs b/embassy-usb/src/class/cdc_acm.rs
index 09bb1cc8..7f66c5d5 100644
--- a/embassy-usb/src/class/cdc_acm.rs
+++ b/embassy-usb/src/class/cdc_acm.rs
@@ -18,7 +18,6 @@ const CDC_PROTOCOL_NONE: u8 = 0x00;
 
 const CS_INTERFACE: u8 = 0x24;
 const CDC_TYPE_HEADER: u8 = 0x00;
-const CDC_TYPE_CALL_MANAGEMENT: u8 = 0x01;
 const CDC_TYPE_ACM: u8 = 0x02;
 const CDC_TYPE_UNION: u8 = 0x06;
 
@@ -197,14 +196,6 @@ impl<'d, D: Driver<'d>> CdcAcmClass<'d, D> {
                 data_if.into(), // bSubordinateInterface
             ],
         );
-        alt.descriptor(
-            CS_INTERFACE,
-            &[
-                CDC_TYPE_CALL_MANAGEMENT, // bDescriptorSubtype
-                0x00,                     // bmCapabilities
-                data_if.into(),           // bDataInterface
-            ],
-        );
 
         let comm_ep = alt.endpoint_interrupt_in(8, 255);