diff --git a/src/appkit.rs b/src/appkit.rs
index 5b5fb3c..1b57c4c 100644
--- a/src/appkit.rs
+++ b/src/appkit.rs
@@ -1516,7 +1516,7 @@ bitflags! {
         const NSFlagsChangedMask          = 1 << NSFlagsChanged as libc::c_ulonglong,
         const NSAppKitDefinedMask         = 1 << NSAppKitDefined as libc::c_ulonglong,
         const NSSystemDefinedMask         = 1 << NSSystemDefined as libc::c_ulonglong,
-        const NSAPplicationDefinedMask    = 1 << NSApplicationDefined as libc::c_ulonglong,
+        const NSApplicationDefinedMask    = 1 << NSApplicationDefined as libc::c_ulonglong,
         const NSPeriodicMask              = 1 << NSPeriodic as libc::c_ulonglong,
         const NSCursorUpdateMask          = 1 << NSCursorUpdate as libc::c_ulonglong,
         const NSScrollWheelMask           = 1 << NSScrollWheel as libc::c_ulonglong,
@@ -1525,7 +1525,7 @@ bitflags! {
         const NSOtherMouseDownMask        = 1 << NSOtherMouseDown as libc::c_ulonglong,
         const NSOtherMouseUpMask          = 1 << NSOtherMouseUp as libc::c_ulonglong,
         const NSOtherMouseDraggedMask     = 1 << NSOtherMouseDragged as libc::c_ulonglong,
-        const NSEventMaskgesture          = 1 << NSEventTypeGesture as libc::c_ulonglong,
+        const NSEventMaskGesture          = 1 << NSEventTypeGesture as libc::c_ulonglong,
         const NSEventMaskSwipe            = 1 << NSEventTypeSwipe as libc::c_ulonglong,
         const NSEventMaskRotate           = 1 << NSEventTypeRotate as libc::c_ulonglong,
         const NSEventMaskBeginGesture     = 1 << NSEventTypeBeginGesture as libc::c_ulonglong,