diff --git a/sys/include/usb/usbus/control.h b/sys/include/usb/usbus/control.h
index 8032b22bac..75ebb1d171 100644
--- a/sys/include/usb/usbus/control.h
+++ b/sys/include/usb/usbus/control.h
@@ -35,7 +35,7 @@ typedef struct {
     size_t start;                   /**< Start offset of the current part */
     size_t cur;                     /**< Current position in the message  */
     size_t len;                     /**< Length of the full message       */
-    size_t transfered;              /**< Number of bytes transfered       */
+    size_t transferred;             /**< Number of bytes transferred       */
     size_t reqlen;                  /**< Maximum length of the request    */
 } usbus_control_slicer_t;
 
@@ -124,7 +124,7 @@ void usbus_control_slicer_ready(usbus_t *usbus);
  * @param[in] usbus     USBUS context
  *
  * @return              1 when there is a next slice
- * @return              0 when the data is fully transfered
+ * @return              0 when the data is fully transferred
  */
 int usbus_control_slicer_nextslice(usbus_t *usbus);
 
diff --git a/sys/usb/usbus/usbus_control_slicer.c b/sys/usb/usbus/usbus_control_slicer.c
index 8250dce1e6..31018c6283 100644
--- a/sys/usb/usbus/usbus_control_slicer.c
+++ b/sys/usb/usbus/usbus_control_slicer.c
@@ -31,7 +31,7 @@ int usbus_control_slicer_nextslice(usbus_t *usbus)
     size_t end = bldr->start + ep0->in->len;
 
     if (bldr->cur > end && bldr->start < bldr->reqlen &&
-        bldr->transfered < bldr->reqlen) {
+        bldr->transferred < bldr->reqlen) {
         bldr->start += ep0->in->len;
         bldr->cur = 0;
         bldr->len = 0;
@@ -96,6 +96,6 @@ void usbus_control_slicer_ready(usbus_t *usbus)
     size_t len = bldr->len;
 
     len = len < bldr->reqlen - bldr->start ? len : bldr->reqlen - bldr->start;
-    bldr->transfered += len;
+    bldr->transferred += len;
     usbdev_ep_ready(ep0->in, len);
 }