diff --git a/project/Build.scala b/project/Build.scala
index ac1dd7b5538d..8da49dedeb4c 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -1902,6 +1902,9 @@ object Build {
       dependsOn(tastyCore).
       dependsOn(dottyCompiler).
       dependsOn(dottyLibrary).
+      bootstrappedSettings(
+        addCommandAlias("clean", ";scala3-bootstrapped/clean;stdlib-bootstrapped/clean"),
+      ).
       nonBootstrappedSettings(
         addCommandAlias("run", "scala3-compiler/run"),
         // Clean everything by default