diff --git a/Xi/xichangehierarchy.c b/Xi/xichangehierarchy.c
index 21c74ed7a..15eb5c92a 100644
--- a/Xi/xichangehierarchy.c
+++ b/Xi/xichangehierarchy.c
@@ -353,6 +353,7 @@ detach_slave(ClientPtr client, xXIDetachSlaveInfo *c, int flags[MAXDEVICES])
         goto unwind;
     }
 
+    ReleaseButtonsAndKeys(dev);
     AttachDevice(client, dev, NULL);
     flags[dev->id] |= XISlaveDetached;
 
@@ -404,6 +405,7 @@ attach_slave(ClientPtr client, xXIAttachSlaveInfo *c,
         goto unwind;
     }
 
+    ReleaseButtonsAndKeys(dev);
     AttachDevice(client, dev, newmaster);
     flags[dev->id] |= XISlaveAttached;
 
diff --git a/dix/devices.c b/dix/devices.c
index 827c328f9..aa391a176 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -2410,7 +2410,7 @@ RecalculateMasterButtons(DeviceIntPtr slave)
  * Generate release events for all keys/button currently down on this
  * device.
  */
-static void
+void
 ReleaseButtonsAndKeys(DeviceIntPtr dev)
 {
     EventListPtr        eventlist = InitEventList(GetMaximumEventsNum());
@@ -2479,8 +2479,6 @@ AttachDevice(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr master)
         free(dev->spriteInfo->sprite);
     }
 
-    ReleaseButtonsAndKeys(dev);
-
     oldmaster = dev->u.master;
     dev->u.master = master;
 
diff --git a/include/input.h b/include/input.h
index 908e595e5..95aae43fc 100644
--- a/include/input.h
+++ b/include/input.h
@@ -495,6 +495,8 @@ extern _X_EXPORT int GetMotionHistory(
     ScreenPtr pScreen,
     BOOL core);
 
+extern void ReleaseButtonsAndKeys(DeviceIntPtr dev);
+
 extern int AttachDevice(ClientPtr client,
                         DeviceIntPtr slave,
                         DeviceIntPtr master);