diff --git a/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala b/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
index 6537c9e2e..39baa07a6 100644
--- a/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
+++ b/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
@@ -33,8 +33,8 @@ object JUnitXmlReportPlugin extends AutoPlugin {
     Seq(
       testListeners += new JUnitXmlTestsListener(
         target.value.getAbsolutePath,
-        streams.value.log,
-        SysProp.legacyTestReport
+        SysProp.legacyTestReport,
+        streams.value.log
       )
     )
 }
diff --git a/sbt/src/sbt-test/tests/junit-xml-report/build.sbt b/sbt/src/sbt-test/tests/junit-xml-report/build.sbt
index 1d864c81b..a2f002d50 100644
--- a/sbt/src/sbt-test/tests/junit-xml-report/build.sbt
+++ b/sbt/src/sbt-test/tests/junit-xml-report/build.sbt
@@ -5,11 +5,11 @@ import Defaults._
 val checkReport = taskKey[Unit]("Check the test reports")
 val checkNoReport = taskKey[Unit]("Check that no reports are present")
 
-val oneSecondReportFile = "target/test-reports/a.pkg.OneSecondTest.xml"
-val failingReportFile = "target/test-reports/another.pkg.FailingTest.xml"
+val oneSecondReportFile = "target/test-reports/TEST-a.pkg.OneSecondTest.xml"
+val failingReportFile = "target/test-reports/TEST-another.pkg.FailingTest.xml"
 
-val flatSuiteReportFile = "target/test-reports/my.scalatest.MyFlatSuite.xml"
-val nestedSuitesReportFile = "target/test-reports/my.scalatest.MyNestedSuites.xml"
+val flatSuiteReportFile = "target/test-reports/TEST-my.scalatest.MyFlatSuite.xml"
+val nestedSuitesReportFile = "target/test-reports/TEST-my.scalatest.MyNestedSuites.xml"
 
 val scalatest = "org.scalatest" %% "scalatest" % "3.0.5"
 val junitinterface = "com.novocode" % "junit-interface" % "0.11"
diff --git a/testing/src/main/scala/sbt/JUnitXmlTestsListener.scala b/testing/src/main/scala/sbt/JUnitXmlTestsListener.scala
index c92765186..d8e0bfa2b 100644
--- a/testing/src/main/scala/sbt/JUnitXmlTestsListener.scala
+++ b/testing/src/main/scala/sbt/JUnitXmlTestsListener.scala
@@ -33,10 +33,11 @@ import sbt.protocol.testing.TestResult
  * report format.
  * @param outputDir path to the dir in which a folder with results is generated
  */
-class JUnitXmlTestsListener(val outputDir: String, logger: Logger, legacyTestReport: Boolean)
+class JUnitXmlTestsListener(val outputDir: String, legacyTestReport: Boolean, logger: Logger)
     extends TestsListener {
-  // This constructor is for binary compatibility with older versions of sbt.
-  def this(outputDir: String) = this(outputDir, null, false)
+  // These constructors are for binary compatibility with older versions of sbt.
+  def this(outputDir: String, logger: Logger) = this(outputDir, false, logger)
+  def this(outputDir: String) = this(outputDir, false, null)
 
   /**Current hostname so we know which machine executed the tests*/
   val hostname: String = {