diff --git a/scans/p1.s b/scans/p1.s
index 8e3f342..e37072a 100644
--- a/scans/p1.s
+++ b/scans/p1.s
@@ -181,7 +181,7 @@ loop:
 	dac ball1+vx
 2:
 	lac toptest
-	tad ball1+vy
+	tad ball1+y
 	spa
 	jmp 2f
 	jms pockettb
diff --git a/src/cmd/p1.s b/src/cmd/p1.s
index 8e3f342..e37072a 100644
--- a/src/cmd/p1.s
+++ b/src/cmd/p1.s
@@ -181,7 +181,7 @@ loop:
 	dac ball1+vx
 2:
 	lac toptest
-	tad ball1+vy
+	tad ball1+y
 	spa
 	jmp 2f
 	jms pockettb