diff --git a/docs/reference/gdk/gdk4-sections.txt b/docs/reference/gdk/gdk4-sections.txt
index 18f6615a8a..30b09adea8 100644
--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -469,7 +469,6 @@ gdk_seat_capabilities_get_type
 <FILE>events</FILE>
 GdkEvent
 GdkEventType
-GdkEventMask
 GdkKeyMatch
 GdkTouchpadGesturePhase
 GdkScrollDirection
diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index 586519c76d..a883589eff 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -268,6 +268,34 @@ typedef enum
   GDK_OWNERSHIP_APPLICATION
 } GdkGrabOwnership;
 
+typedef enum
+{
+  GDK_EXPOSURE_MASK             = 1 << 1,
+  GDK_POINTER_MOTION_MASK       = 1 << 2,
+  GDK_BUTTON_MOTION_MASK        = 1 << 4,
+  GDK_BUTTON1_MOTION_MASK       = 1 << 5,
+  GDK_BUTTON2_MOTION_MASK       = 1 << 6,
+  GDK_BUTTON3_MOTION_MASK       = 1 << 7,
+  GDK_BUTTON_PRESS_MASK         = 1 << 8,
+  GDK_BUTTON_RELEASE_MASK       = 1 << 9,
+  GDK_KEY_PRESS_MASK            = 1 << 10,
+  GDK_KEY_RELEASE_MASK          = 1 << 11,
+  GDK_ENTER_NOTIFY_MASK         = 1 << 12,
+  GDK_LEAVE_NOTIFY_MASK         = 1 << 13,
+  GDK_FOCUS_CHANGE_MASK         = 1 << 14,
+  GDK_STRUCTURE_MASK            = 1 << 15,
+  GDK_PROPERTY_CHANGE_MASK      = 1 << 16,
+  GDK_PROXIMITY_IN_MASK         = 1 << 18,
+  GDK_PROXIMITY_OUT_MASK        = 1 << 19,
+  GDK_SUBSTRUCTURE_MASK         = 1 << 20,
+  GDK_SCROLL_MASK               = 1 << 21,
+  GDK_TOUCH_MASK                = 1 << 22,
+  GDK_SMOOTH_SCROLL_MASK        = 1 << 23,
+  GDK_TOUCHPAD_GESTURE_MASK     = 1 << 24,
+  GDK_TABLET_PAD_MASK           = 1 << 25,
+  GDK_ALL_EVENTS_MASK           = 0x3FFFFFE
+} GdkEventMask;
+
 GdkGrabStatus gdk_device_grab (GdkDevice        *device,
                                GdkSurface        *surface,
                                GdkGrabOwnership  grab_ownership,
diff --git a/gdk/gdktypes.h b/gdk/gdktypes.h
index 4e1cc597c4..f05456d366 100644
--- a/gdk/gdktypes.h
+++ b/gdk/gdktypes.h
@@ -234,74 +234,6 @@ typedef enum
                            GDK_BUTTON1_MASK|GDK_BUTTON2_MASK|GDK_BUTTON3_MASK| \
                            GDK_BUTTON4_MASK|GDK_BUTTON5_MASK)
 
-/**
- * GdkEventMask:
- * @GDK_EXPOSURE_MASK: receive expose events
- * @GDK_POINTER_MOTION_MASK: receive all pointer motion events
- * @GDK_BUTTON_MOTION_MASK: receive pointer motion events while any button is pressed
- * @GDK_BUTTON1_MOTION_MASK: receive pointer motion events while 1 button is pressed
- * @GDK_BUTTON2_MOTION_MASK: receive pointer motion events while 2 button is pressed
- * @GDK_BUTTON3_MOTION_MASK: receive pointer motion events while 3 button is pressed
- * @GDK_BUTTON_PRESS_MASK: receive button press events
- * @GDK_BUTTON_RELEASE_MASK: receive button release events
- * @GDK_KEY_PRESS_MASK: receive key press events
- * @GDK_KEY_RELEASE_MASK: receive key release events
- * @GDK_ENTER_NOTIFY_MASK: receive surface enter events
- * @GDK_LEAVE_NOTIFY_MASK: receive surface leave events
- * @GDK_FOCUS_CHANGE_MASK: receive focus change events
- * @GDK_STRUCTURE_MASK: receive events about surface configuration change
- * @GDK_PROPERTY_CHANGE_MASK: receive property change events
- * @GDK_PROXIMITY_IN_MASK: receive proximity in events
- * @GDK_PROXIMITY_OUT_MASK: receive proximity out events
- * @GDK_SUBSTRUCTURE_MASK: receive events about surface configuration changes of child surfaces
- * @GDK_SCROLL_MASK: receive scroll events
- * @GDK_TOUCH_MASK: receive touch events
- * @GDK_SMOOTH_SCROLL_MASK: receive smooth scrolling events
-   @GDK_TOUCHPAD_GESTURE_MASK: receive touchpad gesture events
- * @GDK_TABLET_PAD_MASK: receive tablet pad events
- * @GDK_ALL_EVENTS_MASK: the combination of all the above event masks.
- *
- * A set of bit-flags to indicate which events a surface is to receive.
- * Most of these masks map onto one or more of the #GdkEventType event types
- * above.
- *
- * See the [input handling overview][chap-input-handling] for details of
- * [event masks][event-masks] and [event propagation][event-propagation].
- *
- * If %GDK_TOUCH_MASK is enabled, the surface will receive touch events
- * from touch-enabled devices. Those will come as sequences of #GdkEventTouch
- * with type %GDK_TOUCH_UPDATE, enclosed by two events with
- * type %GDK_TOUCH_BEGIN and %GDK_TOUCH_END (or %GDK_TOUCH_CANCEL).
- * gdk_event_get_event_sequence() returns the event sequence for these
- * events, so different sequences may be distinguished.
- */
-typedef enum
-{
-  GDK_EXPOSURE_MASK             = 1 << 1,
-  GDK_POINTER_MOTION_MASK       = 1 << 2,
-  GDK_BUTTON_MOTION_MASK        = 1 << 4,
-  GDK_BUTTON1_MOTION_MASK       = 1 << 5,
-  GDK_BUTTON2_MOTION_MASK       = 1 << 6,
-  GDK_BUTTON3_MOTION_MASK       = 1 << 7,
-  GDK_BUTTON_PRESS_MASK         = 1 << 8,
-  GDK_BUTTON_RELEASE_MASK       = 1 << 9,
-  GDK_KEY_PRESS_MASK            = 1 << 10,
-  GDK_KEY_RELEASE_MASK          = 1 << 11,
-  GDK_ENTER_NOTIFY_MASK         = 1 << 12,
-  GDK_LEAVE_NOTIFY_MASK         = 1 << 13,
-  GDK_FOCUS_CHANGE_MASK         = 1 << 14,
-  GDK_STRUCTURE_MASK            = 1 << 15,
-  GDK_PROPERTY_CHANGE_MASK      = 1 << 16,
-  GDK_PROXIMITY_IN_MASK         = 1 << 18,
-  GDK_PROXIMITY_OUT_MASK        = 1 << 19,
-  GDK_SUBSTRUCTURE_MASK         = 1 << 20,
-  GDK_SCROLL_MASK               = 1 << 21,
-  GDK_TOUCH_MASK                = 1 << 22,
-  GDK_SMOOTH_SCROLL_MASK        = 1 << 23,
-  GDK_TOUCHPAD_GESTURE_MASK     = 1 << 24,
-  GDK_TABLET_PAD_MASK           = 1 << 25,
-  GDK_ALL_EVENTS_MASK           = 0x3FFFFFE
-} GdkEventMask;
 
 /**
  * GdkGLError:
diff --git a/gdk/x11/gdkeventtranslator.h b/gdk/x11/gdkeventtranslator.h
index 4d3ea95154..2c4c415cb0 100644
--- a/gdk/x11/gdkeventtranslator.h
+++ b/gdk/x11/gdkeventtranslator.h
@@ -20,6 +20,7 @@
 
 #include "gdktypes.h"
 #include "gdkdisplay.h"
+#include "gdkinternals.h"
 
 #include <X11/Xlib.h>