diff --git a/vnc.c b/vnc.c
--- a/vnc.c
+++ b/vnc.c
@@ -1421,8 +1421,10 @@
         dz = 1;
 
     if (vs->absolute) {
-        kbd_mouse_event(x * 0x7FFF / (ds_get_width(vs->ds) - 1),
-                        y * 0x7FFF / (ds_get_height(vs->ds) - 1),
+        kbd_mouse_event(ds_get_width(vs->ds) > 1 ?
+                          x * 0x7FFF / (ds_get_width(vs->ds) - 1) : 0x4000,
+                        ds_get_height(vs->ds) > 1 ?
+                          y * 0x7FFF / (ds_get_height(vs->ds) - 1) : 0x4000,
                         dz, buttons);
     } else if (vnc_has_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE)) {
         x -= 0x7FFF;