diff --git a/build.sbt b/build.sbt
index fac0b36ff..0ec81cf9f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -409,6 +409,7 @@ lazy val e2e = (projectMatrix in file("e2e"))
                                                                                          "scalajvm-3"
                                                                                        else
                                                                                          "scalajvm-2"),
+      Test / unmanagedSourceDirectories += (Test / scalaSource).value.getParentFile / "scalajvm-3-source",
       scalacOptions ++=
         (if (isScala3.value) Seq("-source", "future") else Seq("-Xsource:3")),
       Test / scalacOptions --=
diff --git a/e2e/src/main/protobuf-scala3/issue1576.proto b/e2e/src/main/protobuf/issue1576.proto
similarity index 100%
rename from e2e/src/main/protobuf-scala3/issue1576.proto
rename to e2e/src/main/protobuf/issue1576.proto
diff --git a/e2e/src/test/scalajvm-3/Scala3CompatSpec.scala b/e2e/src/test/scalajvm-3-source/Scala3CompatSpec.scala
similarity index 100%
rename from e2e/src/test/scalajvm-3/Scala3CompatSpec.scala
rename to e2e/src/test/scalajvm-3-source/Scala3CompatSpec.scala