diff --git a/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c b/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
index d60c9a585..84939e2d7 100644
--- a/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
+++ b/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
@@ -184,8 +184,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/dfu_rt/src/usb_descriptors.c b/examples/device/dfu_rt/src/usb_descriptors.c
index 0c7081245..17b3fe87d 100644
--- a/examples/device/dfu_rt/src/usb_descriptors.c
+++ b/examples/device/dfu_rt/src/usb_descriptors.c
@@ -193,8 +193,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   size_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/hid_composite/src/usb_descriptors.c b/examples/device/hid_composite/src/usb_descriptors.c
index 01f2cb59b..19689c90b 100644
--- a/examples/device/hid_composite/src/usb_descriptors.c
+++ b/examples/device/hid_composite/src/usb_descriptors.c
@@ -134,8 +134,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/hid_generic_inout/src/usb_descriptors.c b/examples/device/hid_generic_inout/src/usb_descriptors.c
index 07989c5fd..87611a432 100644
--- a/examples/device/hid_generic_inout/src/usb_descriptors.c
+++ b/examples/device/hid_generic_inout/src/usb_descriptors.c
@@ -132,8 +132,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/midi_test/src/usb_descriptors.c b/examples/device/midi_test/src/usb_descriptors.c
index 2305c9f68..949404826 100644
--- a/examples/device/midi_test/src/usb_descriptors.c
+++ b/examples/device/midi_test/src/usb_descriptors.c
@@ -123,8 +123,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/msc_dual_lun/src/usb_descriptors.c b/examples/device/msc_dual_lun/src/usb_descriptors.c
index e0a5904a4..1abc15cae 100644
--- a/examples/device/msc_dual_lun/src/usb_descriptors.c
+++ b/examples/device/msc_dual_lun/src/usb_descriptors.c
@@ -121,8 +121,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/usbtmc/src/usb_descriptors.c b/examples/device/usbtmc/src/usb_descriptors.c
index 27e1bdaa9..92b1dce61 100644
--- a/examples/device/usbtmc/src/usb_descriptors.c
+++ b/examples/device/usbtmc/src/usb_descriptors.c
@@ -216,8 +216,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   size_t chr_count;
 
   if ( index == 0)
diff --git a/examples/device/webusb_serial/src/usb_descriptors.c b/examples/device/webusb_serial/src/usb_descriptors.c
index 740defe4e..2925a66c4 100644
--- a/examples/device/webusb_serial/src/usb_descriptors.c
+++ b/examples/device/webusb_serial/src/usb_descriptors.c
@@ -204,8 +204,10 @@ static uint16_t _desc_str[32];
 
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index)
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
 {
+  (void) langid;
+
   uint8_t chr_count;
 
   if ( index == 0)