diff --git a/Src/stm32f1xx_ll_usb.c b/Src/stm32f1xx_ll_usb.c
index a99afeb..00522eb 100644
--- a/Src/stm32f1xx_ll_usb.c
+++ b/Src/stm32f1xx_ll_usb.c
@@ -1176,7 +1176,7 @@
   */
 void  USB_ClearInterrupts(USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt)
 {
-  USBx->GINTSTS |= interrupt;
+  USBx->GINTSTS &= interrupt;
 }
 
 /**
@@ -1738,6 +1738,10 @@
         USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
       }
     }
+    else
+    {
+      USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+    }
   }
   else
   {