diff --git a/di-edid-decode.c b/di-edid-decode.c
index 525bcf2..4fb0808 100644
--- a/di-edid-decode.c
+++ b/di-edid-decode.c
@@ -1065,7 +1065,10 @@ print_displayid_type_i_timing(const struct di_displayid_type_i_timing *t)
 		printf("undefined");
 	else
 		printf("%d:%d", horiz_ratio, vert_ratio);
-	printf(", %s)\n", displayid_type_i_timing_stereo_3d_name(t->stereo_3d));
+	printf(", %s", displayid_type_i_timing_stereo_3d_name(t->stereo_3d));
+	if (t->preferred)
+		printf(", preferred");
+	printf(")\n");
 
 	horiz_back_porch = t->horiz_blank - t->horiz_sync_width - t->horiz_offset;
 	printf("               Hfront %4d Hsync %3d Hback %4d Hpol %s",
diff --git a/test/data/apple-xdr-dp.diff b/test/data/apple-xdr-dp.diff
index cea7e0c..44c49c0 100644
--- a/test/data/apple-xdr-dp.diff
+++ b/test/data/apple-xdr-dp.diff
@@ -89,7 +89,7 @@
    Video Timing Modes Type 1 - Detailed Timings Data Block:
      DTD:  5120x2880   59.999614 Hz  16:9    179.579 kHz    933.810000 MHz (aspect 16:9, no 3D stereo)
                 Hfront    8 Hsync  32 Hback   40 Hpol P
-@@ -179,16 +152,14 @@
+@@ -179,14 +152,12 @@
      DTD:  5120x2880   47.951594 Hz  16:9    179.531 kHz    933.560000 MHz (aspect 16:9, no 3D stereo)
                 Hfront    8 Hsync  32 Hback   40 Hpol P
                 Vfront  850 Vsync   8 Vback    6 Vpol N
@@ -102,11 +102,8 @@
    Version: 1.2
 -  Extension Count: 0
    Video Timing Modes Type 1 - Detailed Timings Data Block:
--    DTD:  6016x3384   59.999899 Hz  16:9    210.960 kHz   1286.010000 MHz (aspect 16:9, no 3D stereo, preferred)
-+    DTD:  6016x3384   59.999899 Hz  16:9    210.960 kHz   1286.010000 MHz (aspect 16:9, no 3D stereo)
+     DTD:  6016x3384   59.999899 Hz  16:9    210.960 kHz   1286.010000 MHz (aspect 16:9, no 3D stereo, preferred)
                 Hfront    8 Hsync  32 Hback   40 Hpol P
-                Vfront  118 Vsync   8 Vback    6 Vpol N
-     DTD:  6016x3384   59.939891 Hz  16:9    210.928 kHz   1285.820000 MHz (aspect 16:9, no 3D stereo)
 @@ -203,30 +174,13 @@
      DTD:  6016x3384   47.951798 Hz  16:9    210.940 kHz   1285.890000 MHz (aspect 16:9, no 3D stereo)
                 Hfront    8 Hsync  32 Hback   40 Hpol P