diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index dd8a07e8ca..b8727b9681 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -7936,7 +7936,6 @@ gtk_gesture_detach
 
 <SUBSECTION>
 gtk_gesture_get_last_updated_sequence
-gtk_gesture_get_last_update_time
 gtk_gesture_get_last_event
 gtk_gesture_get_point
 gtk_gesture_get_bounding_box
diff --git a/gtk/gtkgesture.c b/gtk/gtkgesture.c
index 07ae8635e7..8a8de71c89 100644
--- a/gtk/gtkgesture.c
+++ b/gtk/gtkgesture.c
@@ -993,24 +993,10 @@ gtk_gesture_get_point (GtkGesture       *gesture,
   return TRUE;
 }
 
-/**
- * gtk_gesture_get_last_update_time:
- * @gesture: a #GtkGesture
- * @sequence: (allow-none): a #GdkEventSequence, or %NULL for pointer events
- * @evtime: (out) (allow-none): return location for last update time
- *
- * If @sequence is being interpreted by @gesture, this function
- * returns %TRUE and fills @evtime with the last event time it
- * received from that @sequence.
- *
- * Returns: %TRUE if @sequence is currently interpreted
- *
- * Since: 3.14
- **/
 gboolean
-gtk_gesture_get_last_update_time (GtkGesture       *gesture,
-                                  GdkEventSequence *sequence,
-                                  guint32          *evtime)
+_gtk_gesture_get_last_update_time (GtkGesture       *gesture,
+                                   GdkEventSequence *sequence,
+                                   guint32          *evtime)
 {
   GtkGesturePrivate *priv;
   PointData *data;
diff --git a/gtk/gtkgesture.h b/gtk/gtkgesture.h
index cac48aae74..e3e4938541 100644
--- a/gtk/gtkgesture.h
+++ b/gtk/gtkgesture.h
@@ -76,11 +76,6 @@ gboolean    gtk_gesture_get_point            (GtkGesture       *gesture,
                                               gdouble          *x,
                                               gdouble          *y);
 GDK_AVAILABLE_IN_3_14
-gboolean    gtk_gesture_get_last_update_time (GtkGesture       *gesture,
-                                              GdkEventSequence *sequence,
-                                              guint32          *evtime);
-
-GDK_AVAILABLE_IN_3_14
 gboolean    gtk_gesture_get_bounding_box     (GtkGesture       *gesture,
                                               GdkRectangle     *rect);
 GDK_AVAILABLE_IN_3_14
diff --git a/gtk/gtkgestureprivate.h b/gtk/gtkgestureprivate.h
index 30c4cd44e2..fd2199418a 100644
--- a/gtk/gtkgestureprivate.h
+++ b/gtk/gtkgestureprivate.h
@@ -66,6 +66,10 @@ gboolean _gtk_gesture_get_pointer_emulating_sequence
 gboolean _gtk_gesture_cancel_sequence        (GtkGesture       *gesture,
                                               GdkEventSequence *sequence);
 
+gboolean _gtk_gesture_get_last_update_time   (GtkGesture       *gesture,
+                                              GdkEventSequence *sequence,
+                                              guint32          *evtime);
+
 G_END_DECLS
 
 #endif /* __GTK_GESTURE_PRIVATE_H__ */
diff --git a/gtk/gtkgestureswipe.c b/gtk/gtkgestureswipe.c
index 25a714e69b..310767599a 100644
--- a/gtk/gtkgestureswipe.c
+++ b/gtk/gtkgestureswipe.c
@@ -38,6 +38,7 @@
 #include "config.h"
 #include "gtkgestureswipe.h"
 #include "gtkgestureswipeprivate.h"
+#include "gtkgestureprivate.h"
 #include "gtkmarshalers.h"
 
 #define CAPTURE_THRESHOLD_MS 150
@@ -112,7 +113,7 @@ gtk_gesture_swipe_update (GtkGesture       *gesture,
   gdouble x, y;
 
   priv = gtk_gesture_swipe_get_instance_private (swipe);
-  gtk_gesture_get_last_update_time (gesture, sequence, &new.evtime);
+  _gtk_gesture_get_last_update_time (gesture, sequence, &new.evtime);
   gtk_gesture_get_point (gesture, sequence, &x, &y);
 
   new.point.x = x;
@@ -137,7 +138,7 @@ _gtk_gesture_swipe_calculate_velocity (GtkGestureSwipe *gesture,
   *velocity_x = *velocity_y = 0;
 
   sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
-  gtk_gesture_get_last_update_time (GTK_GESTURE (gesture), sequence, &evtime);
+  _gtk_gesture_get_last_update_time (GTK_GESTURE (gesture), sequence, &evtime);
   _gtk_gesture_swipe_clear_backlog (gesture, evtime);
 
   if (priv->events->len == 0)