diff --git a/gdk/gdkcicpparams.c b/gdk/gdkcicpparams.c
index 495ca3df5d..9162f3a9a1 100644
--- a/gdk/gdkcicpparams.c
+++ b/gdk/gdkcicpparams.c
@@ -168,7 +168,6 @@ gdk_cicp_params_class_init (GdkCicpParamsClass *klass)
    * - 5: PAL
    * - 6,7: BT.601 / NTSC
    * - 9: BT.2020
-   * - 10: CIE XYZ
    * - 12: Display P3
    *
    * Since: 4.16
diff --git a/gdk/gdkcolorstate.c b/gdk/gdkcolorstate.c
index 855de168d8..26510eb8da 100644
--- a/gdk/gdkcolorstate.c
+++ b/gdk/gdkcolorstate.c
@@ -676,10 +676,6 @@ gdk_color_state_new_for_cicp (const GdkCicp  *cicp,
       to_xyz = rec2020_to_xyz;
       from_xyz = xyz_to_rec2020;
       break;
-    case 10:
-      to_xyz = identity;
-      from_xyz = identity;
-      break;
     case 12:
       to_xyz = p3_to_xyz;
       from_xyz = xyz_to_p3;
diff --git a/tools/gtk-image-tool-utils.c b/tools/gtk-image-tool-utils.c
index d4795abc99..d5a2f1e82c 100644
--- a/tools/gtk-image-tool-utils.c
+++ b/tools/gtk-image-tool-utils.c
@@ -115,17 +115,6 @@ find_color_state_by_name (const char *name)
       gdk_cicp_params_set_matrix_coefficients (params, 0);
       gdk_cicp_params_set_range (params, GDK_CICP_RANGE_FULL);
 
-      color_state = gdk_cicp_params_build_color_state (params, &error);
-    }
-  else if (g_strcmp0 (name, "xyz") == 0)
-    {
-      params = gdk_cicp_params_new ();
-
-      gdk_cicp_params_set_color_primaries (params, 10);
-      gdk_cicp_params_set_transfer_function (params, 8);
-      gdk_cicp_params_set_matrix_coefficients (params, 0);
-      gdk_cicp_params_set_range (params, GDK_CICP_RANGE_FULL);
-
       color_state = gdk_cicp_params_build_color_state (params, &error);
     }
   else if (g_strcmp0 (name, "rec2020") == 0)
@@ -190,7 +179,7 @@ char **
 get_color_state_names (void)
 {
   static const char *names[] = {
-    "srgb", "srgb-linear", "display-p3", "xyz", "rec2020",
+    "srgb", "srgb-linear", "display-p3", "rec2020",
     "rec2100-pq", "rec2100-linear", "rec2100-hlg",
     "yuv", "bt601", "bt709",
     NULL,