diff --git a/app/widgets/gimpdeviceinfo-coords.c b/app/widgets/gimpdeviceinfo-coords.c
index 93c1d90beaee2090f9d5eecd97fe5d5325344928..89b9b9ac108d3de48b2b0349494e2f08f9bd9a53 100644
--- a/app/widgets/gimpdeviceinfo-coords.c
+++ b/app/widgets/gimpdeviceinfo-coords.c
@@ -126,7 +126,9 @@ gimp_device_info_get_device_coords (GimpDeviceInfo *info,
                                     GdkWindow      *window,
                                     GimpCoords     *coords)
 {
-  gdouble axes[GDK_AXIS_LAST] = { 0, };
+  gint n_axes = gdk_device_get_n_axes (info->device);
+  gdouble *axes = g_newa(gdouble, n_axes);
+  memset(axes, 0, n_axes * sizeof(*axes));
 
   *coords = default_coords;