diff --git a/src/main/scala/com/htmlism/mos6502/dsl/syntax/AsmSyntax.scala b/src/main/scala/com/htmlism/mos6502/dsl/syntax/AsmSyntax.scala
index 403db37..9583100 100644
--- a/src/main/scala/com/htmlism/mos6502/dsl/syntax/AsmSyntax.scala
+++ b/src/main/scala/com/htmlism/mos6502/dsl/syntax/AsmSyntax.scala
@@ -14,6 +14,8 @@ trait AsmSyntax {
 
     f(ctx)
 
+    ctx.push(RTS)
+
     Subroutine(s, ctx.toFragment, ctx.getJumps)
   }
 
diff --git a/src/test/scala/com/htmlism/mos6502/dsl/Easy6502Spec.scala b/src/test/scala/com/htmlism/mos6502/dsl/Easy6502Spec.scala
index 70b1e58..2ab110c 100644
--- a/src/test/scala/com/htmlism/mos6502/dsl/Easy6502Spec.scala
+++ b/src/test/scala/com/htmlism/mos6502/dsl/Easy6502Spec.scala
@@ -67,9 +67,20 @@ class Easy6502Spec extends AnyFlatSpec with should.Matchers {
   }
 
   "snake" should "compile" in {
+    val initSnake =
+      sub("initSnake") { implicit a =>
+        registers.X.incr
+      }
+
+    val generateApplePosition =
+      sub("generateApplePosition") { implicit a =>
+        registers.X.incr
+      }
+
     val init =
       sub("init") { implicit a =>
-        registers.X.incr
+        jump(initSnake)
+        jump(generateApplePosition)
       }
 
     val readKeys =