diff --git a/test/testpaint/compat.c b/test/testpaint/compat.c
index 99f4b2e58e..188c4217fe 100644
--- a/test/testpaint/compat.c
+++ b/test/testpaint/compat.c
@@ -146,3 +146,8 @@ bool ride_type_has_flag(int rideType, int flag)
 {
 	return (RideProperties[rideType].flags & flag) != 0;
 }
+
+sint16 get_height_marker_offset()
+{
+	return 0;
+}