diff --git a/libraries/USBDevice/USBDevice/USBHAL_LPC11U.cpp b/libraries/USBDevice/USBDevice/USBHAL_LPC11U.cpp
index 07be6e3cc4..3fa7d9a1cc 100644
--- a/libraries/USBDevice/USBDevice/USBHAL_LPC11U.cpp
+++ b/libraries/USBDevice/USBDevice/USBHAL_LPC11U.cpp
@@ -16,11 +16,11 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
-#if defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC1347)
+#if defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC1347) || defined(TARGET_LPC11U35_501)
 
 #if defined(TARGET_LPC1347)
 #define USB_IRQ USB_IRQ_IRQn
-#elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401)
+#elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501)
 #define USB_IRQ USB_IRQn
 #endif
 
@@ -145,7 +145,7 @@ USBHAL::USBHAL(void) {
     epCallback[6] = &USBHAL::EP4_OUT_callback;
     epCallback[7] = &USBHAL::EP4_IN_callback;
 
-    #if defined(TARGET_LPC11U35_401)
+    #if defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501)
     // USB_VBUS input with pull-down
     LPC_IOCON->PIO0_3 = 0x00000009;
     #endif