diff --git a/main/util/src/mill/util/CoursierSupport.scala b/main/util/src/mill/util/CoursierSupport.scala
index 6476bd0e493..0b3e5f43ede 100644
--- a/main/util/src/mill/util/CoursierSupport.scala
+++ b/main/util/src/mill/util/CoursierSupport.scala
@@ -32,6 +32,13 @@ trait CoursierSupport {
         ctx.fold(cache)(c => cache.withLogger(new TickerResolutionLogger(c)))
       }
 
+  /**
+   * A `coursier.Repository` that exposes modules with hard-coded artifact list
+   *
+   * Used in Mill tests. This exposes internal workers for example, so that these
+   * come from the build and not from remote repositories or ~/.ivy2/local. See
+   * `MillJavaModule#{testTransitiveDeps,writeLocalTestOverrides}` in the Mill build.
+   */
   private class TestOverridesRepo(root: os.ResourcePath) extends Repository {
 
     private def listFor(mod: Module): Either[os.ResourceNotFoundException, String] = {
diff --git a/scalalib/src/mill/scalalib/JavaModule.scala b/scalalib/src/mill/scalalib/JavaModule.scala
index 4b3b900cf27..05566acc696 100644
--- a/scalalib/src/mill/scalalib/JavaModule.scala
+++ b/scalalib/src/mill/scalalib/JavaModule.scala
@@ -471,7 +471,10 @@ trait JavaModule
         // We pull their compile scope when our compile scope is asked,
         // and pull their runtime scope when our runtime scope is asked.
         Seq(
-          (cs.Configuration.compile, modDep.coursierDependency),
+          (
+            cs.Configuration.compile,
+            modDep.coursierDependency.withConfiguration(cs.Configuration.compile)
+          ),
           (
             cs.Configuration.runtime,
             modDep.coursierDependency.withConfiguration(cs.Configuration.runtime)
@@ -481,17 +484,17 @@ trait JavaModule
         compileModuleDepsChecked.map { modDep =>
           // Compile-only (aka provided) dependencies
           // We pull their compile scope when our provided scope is asked (see scopes above)
-          (cs.Configuration.provided, modDep.coursierDependency)
+          (
+            cs.Configuration.provided,
+            modDep.coursierDependency.withConfiguration(cs.Configuration.compile)
+          )
         } ++
         runModuleDepsChecked.map { modDep =>
           // Runtime dependencies
           // We pull their runtime scope when our runtime scope is pulled
           (
             cs.Configuration.runtime,
-            modDep.coursierDependency.withConfiguration(
-              if (modDep.coursierDependency.configuration.isEmpty) cs.Configuration.runtime
-              else modDep.coursierDependency.configuration
-            )
+            modDep.coursierDependency.withConfiguration(cs.Configuration.runtime)
           )
         }
 
@@ -502,23 +505,21 @@ trait JavaModule
           // We pull their compile scope when our compile scope is asked,
           // and pull their runtime scope when our runtime scope is asked.
           Seq(
-            (cs.Configuration.compile, dep),
+            (cs.Configuration.compile, dep.withConfiguration(cs.Configuration.compile)),
             (cs.Configuration.runtime, dep.withConfiguration(cs.Configuration.runtime))
           )
       } ++
         compileIvyDeps().map(bindDependency()).map(_.dep).map { dep =>
           // Compile-only (aka provided) dependencies, like above
           // We pull their compile scope when our provided scope is asked (see scopes above)
-          (cs.Configuration.provided, dep)
+          (cs.Configuration.provided, dep.withConfiguration(cs.Configuration.compile))
         } ++
         runIvyDeps().map(bindDependency()).map(_.dep).map { dep =>
           // Runtime dependencies, like above
           // We pull their runtime scope when our runtime scope is pulled
           (
             cs.Configuration.runtime,
-            dep.withConfiguration(
-              if (dep.configuration.isEmpty) cs.Configuration.runtime else dep.configuration
-            )
+            dep.withConfiguration(cs.Configuration.runtime)
           )
         } ++
         allBomDeps().map { bomDep =>