diff --git a/src/p_setup.c b/src/p_setup.c
index 52fac78c5..bedb39c78 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -4999,7 +4999,7 @@ static void P_ConvertBinaryLinedefTypes(void)
 		case 404: //Copy-move tagged sector's ceiling height/texture
 			lines[i].args[0] = 0;
 			lines[i].args[1] = tag;
-			lines[i].args[2] = lines[i].special - 403;
+			lines[i].args[2] = (lines[i].special == 403) ? TMP_FLOOR : TMP_CEILING;
 			lines[i].args[3] = P_AproxDistance(lines[i].dx, lines[i].dy) >> FRACBITS;
 			lines[i].args[4] = (lines[i].flags & ML_BLOCKPLAYERS) ? sides[lines[i].sidenum[0]].textureoffset >> FRACBITS : 0;
 			lines[i].args[5] = !!(lines[i].flags & ML_NOCLIMB);
diff --git a/src/p_spec.c b/src/p_spec.c
index 40501ff62..95f9d923f 100644
--- a/src/p_spec.c
+++ b/src/p_spec.c
@@ -2627,10 +2627,10 @@ boolean P_ProcessSpecial(activator_t *activator, INT16 special, INT32 *args, cha
 				{
 					EV_DoMoveCeilingByHeight(
 						args[1],
-						copySector->floorheight,
+						copySector->ceilingheight,
 						args[3] << (FRACBITS - 3),
 						args[4],
-						args[5] ? copySector->floorpic : -1
+						args[5] ? copySector->ceilingpic : -1
 					);
 				}
 			}