diff --git a/unstable/wlr-virtual-pointer-unstable-v1.xml b/unstable/wlr-virtual-pointer-unstable-v1.xml
index ea243e7..121217b 100644
--- a/unstable/wlr-virtual-pointer-unstable-v1.xml
+++ b/unstable/wlr-virtual-pointer-unstable-v1.xml
@@ -23,7 +23,7 @@
     DEALINGS IN THE SOFTWARE.
   </copyright>
 
-  <interface name="zwlr_virtual_pointer_v1" version="2">
+  <interface name="zwlr_virtual_pointer_v1" version="3">
     <description summary="virtual pointer">
       This protocol allows clients to emulate a physical pointer device. The
       requests are mostly mirror opposites of those specified in wl_pointer.
@@ -34,6 +34,8 @@
         summary="client sent invalid axis enumeration value" />
       <entry name="invalid_axis_source" value="1"
         summary="client sent invalid axis source enumeration value" />
+      <entry name="invalid_position" value="2" since="3"
+        summary="client sent invalid position coordinates" />
     </enum>
 
     <request name="motion">
@@ -52,7 +54,7 @@
         The pointer has moved in an absolute coordinate frame.
 
         Value of x can range from 0 to x_extent, value of y can range from 0
-        to y_extent.
+        to y_extent. If outside this range an invalid_position error is raised.
       </description>
       <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
       <arg name="x" type="uint" summary="position on the x-axis"/>