diff --git a/compiler/test/dotty/tools/vulpix/ParallelTesting.scala b/compiler/test/dotty/tools/vulpix/ParallelTesting.scala
index b5534337e82b..08f9b9ae2828 100644
--- a/compiler/test/dotty/tools/vulpix/ParallelTesting.scala
+++ b/compiler/test/dotty/tools/vulpix/ParallelTesting.scala
@@ -411,7 +411,7 @@ trait ParallelTesting extends RunnerOrchestration { self =>
 
         if (isInteractive && !suppressAllOutput) pool.submit(createProgressMonitor)
 
-        filteredSources.foreach { target =>
+        val eventualResults = filteredSources.map { target =>
           pool.submit(encapsulatedCompilation(target))
         }
 
@@ -423,6 +423,8 @@ trait ParallelTesting extends RunnerOrchestration { self =>
           throw new TimeoutException("Compiling targets timed out")
         }
 
+        eventualResults.foreach(_.get)
+
         if (didFail) {
           reportFailed()
           failedTestSources.toSet.foreach(addFailedTest)