diff --git a/sbt-test/pipelining/Yearly-tasty-output-inline/build.sbt b/sbt-test/pipelining/Yearly-tasty-output-inline/build.sbt
index c0c726ce6a02..e350fa7e7def 100644
--- a/sbt-test/pipelining/Yearly-tasty-output-inline/build.sbt
+++ b/sbt-test/pipelining/Yearly-tasty-output-inline/build.sbt
@@ -1,8 +1,10 @@
-// defines a inline method
+// NOTE: in this test, we are explictly fixing the classpath of project `b` to be `a-early.jar`
+// to manually test pipelining without sbt/zinc managing the classpath.
+
+// defines a inline method.
 lazy val a = project.in(file("a"))
   .settings(
     scalacOptions ++= Seq("-Yearly-tasty-output", ((ThisBuild / baseDirectory).value / "a-early.jar").toString),
-    scalacOptions += "-Ystop-after:firstTransform",
     scalacOptions += "-Ycheck:all",
   )
 
diff --git a/sbt-test/pipelining/Yearly-tasty-output/build.sbt b/sbt-test/pipelining/Yearly-tasty-output/build.sbt
index 62990c616071..5cfe30936ea9 100644
--- a/sbt-test/pipelining/Yearly-tasty-output/build.sbt
+++ b/sbt-test/pipelining/Yearly-tasty-output/build.sbt
@@ -1,8 +1,10 @@
+// NOTE: in this test, we are explictly fixing the classpath of project `c` to be `a-early.jar:b-early-out`
+// to manually test pipelining without sbt/zinc managing the classpath.
+
 // early out is a jar
 lazy val a = project.in(file("a"))
   .settings(
     scalacOptions ++= Seq("-Yearly-tasty-output", ((ThisBuild / baseDirectory).value / "a-early.jar").toString),
-    scalacOptions += "-Ystop-after:firstTransform",
     scalacOptions += "-Ycheck:all",
   )
 
@@ -10,7 +12,6 @@ lazy val a = project.in(file("a"))
 lazy val b = project.in(file("b"))
   .settings(
     scalacOptions ++= Seq("-Yearly-tasty-output", ((ThisBuild / baseDirectory).value / "b-early-out").toString),
-    scalacOptions += "-Ystop-after:firstTransform",
     scalacOptions += "-Ycheck:all",
   )