diff --git a/compiler/test/dotty/tools/backend/jvm/DottyBytecodeTest.scala b/compiler/test/dotty/tools/backend/jvm/DottyBytecodeTest.scala
index 842164339b24..c66386e97c89 100644
--- a/compiler/test/dotty/tools/backend/jvm/DottyBytecodeTest.scala
+++ b/compiler/test/dotty/tools/backend/jvm/DottyBytecodeTest.scala
@@ -46,6 +46,7 @@ trait DottyBytecodeTest {
   def initCtx = {
     val ctx0 = (new ContextBase).initialCtx.fresh
     val outputDir = new VirtualDirectory("<DottyBytecodeTest output>")
+    ctx0.setSetting(ctx0.settings.silentWarnings, true)
     ctx0.setSetting(ctx0.settings.classpath, TestConfiguration.basicClasspath)
     ctx0.setProperty(ContextDoc, new ContextDocstrings)
     ctx0.setSetting(ctx0.settings.outputDir, outputDir)