diff --git a/modules/build/src/main/scala/scala/build/Build.scala b/modules/build/src/main/scala/scala/build/Build.scala
index ae9811c7a5..64fafc1f0c 100644
--- a/modules/build/src/main/scala/scala/build/Build.scala
+++ b/modules/build/src/main/scala/scala/build/Build.scala
@@ -1004,6 +1004,10 @@ object Build {
       else Nil
     }
 
+    val moduleDeps = inputs.moduleDependencies ++ {
+      if (scope == Scope.Test) Seq(inputs.scopeProjectName(Scope.Main)) else Nil
+    }
+
     value(validate(logger, options))
 
     val fullClassPath = artifacts.compileClassPath ++
@@ -1036,7 +1040,7 @@ object Build {
       scope = scope,
       javaHomeOpt = Option(options.javaHomeLocation().value),
       javacOptions = javacOptions,
-      moduleDependencies = inputs.moduleDependencies
+      moduleDependencies = moduleDeps
     )
     project
   }
diff --git a/modules/build/src/main/scala/scala/build/bsp/BspImpl.scala b/modules/build/src/main/scala/scala/build/bsp/BspImpl.scala
index 915e540463..1e2e98eb8c 100644
--- a/modules/build/src/main/scala/scala/build/bsp/BspImpl.scala
+++ b/modules/build/src/main/scala/scala/build/bsp/BspImpl.scala
@@ -333,7 +333,22 @@ final class BspImpl(
       executor
     )
 
-    preBuild.thenCompose {
+    preBuild.thenCompose { x =>
+      Thread.sleep(1000)
+      x.foreach{ r =>
+        r.prebuildModules.foreach{ m =>
+          pprint.err.log(m.mainScope.project.projectName)
+          m.mainScope.sources.paths.foreach(path => pprint.err.log(os.read(path._1)))
+          m.mainScope.project.classPath.foreach(p => pprint.err.log(p.toString))
+        }
+        r.prebuildModules.foreach { m =>
+          pprint.err.log(m.testScope.project.projectName)
+          m.testScope.sources.paths.foreach(path => pprint.err.log(os.read(path._1)))
+          m.testScope.project.classPath.foreach(p => pprint.err.log(p.toString))
+        }
+      }
+      CompletableFuture.supplyAsync(() => x, executor)
+    }.thenCompose {
       case Left((ex, projectName)) =>
         val taskId = new b.TaskId(UUID.randomUUID().toString)
 
diff --git a/modules/integration/src/test/scala/scala/cli/integration/BspTestDefinitions.scala b/modules/integration/src/test/scala/scala/cli/integration/BspTestDefinitions.scala
index baa04df5d3..af75903945 100644
--- a/modules/integration/src/test/scala/scala/cli/integration/BspTestDefinitions.scala
+++ b/modules/integration/src/test/scala/scala/cli/integration/BspTestDefinitions.scala
@@ -1,6 +1,6 @@
 package scala.cli.integration
 
-import ch.epfl.scala.bsp4j.{BuildTargetEvent, JvmTestEnvironmentParams, SourcesParams}
+import ch.epfl.scala.bsp4j.{BuildTargetEvent, JvmTestEnvironmentParams}
 import ch.epfl.scala.bsp4j as b
 import com.eed3si9n.expecty.Expecty.expect
 import com.google.gson.{Gson, JsonElement}
@@ -8,6 +8,7 @@ import com.google.gson.{Gson, JsonElement}
 import java.net.URI
 import java.nio.file.Paths
 import java.util.concurrent.{ExecutorService, ScheduledExecutorService}
+
 import scala.annotation.tailrec
 import scala.async.Async.{async, await}
 import scala.cli.integration.compose.ComposeBspTestDefinitions
@@ -778,7 +779,7 @@ abstract class BspTestDefinitions extends ScalaCliSuite with TestScalaVersionArg
     }
   }
 
-  test("tes scope uses artifacts from main scope") {
+  test("test workspace update after adding file to main scope") {
     val inputs = TestInputs(
       os.rel / "Messages.scala" ->
         """//> using dep "com.lihaoyi::os-lib:0.7.8"