diff --git a/project/Aliases.scala b/project/Aliases.scala
index d7fa8b5aa..c052d0a1e 100644
--- a/project/Aliases.scala
+++ b/project/Aliases.scala
@@ -2,7 +2,7 @@
 import sbt._
 import sbt.Defaults.itSettings
 import sbt.Keys._
-import sbt.ScriptedPlugin.autoImport.{ScriptedConf, ScriptedLaunchConf, scriptedSbt}
+import sbt.ScriptedPlugin.autoImport._
 import sbt.ScriptedPlugin.{projectSettings => scriptedSettings}
 import sbt.librarymanagement.CrossVersion.partialVersion
 
@@ -10,7 +10,72 @@ object Aliases {
 
   def libs = libraryDependencies
 
-  def withScriptedTests =
+  def withScriptedTests = {
+
+    // Both tweaked tasks adapted from the scripted sources.
+    // No idea why this is required to run the scripted tests for sbt 0.13.
+
+    def tweakedScriptedRunTask = Def.task {
+      // similar to https://github.com/sbt/sbt/issues/3245#issuecomment-306045952
+      val cls = scriptedTests.value.getClass
+
+      if (sbtVersion.in(pluginCrossBuild).value.startsWith("0.13."))
+        cls.getMethod("run",
+          classOf[File],
+          classOf[Boolean],
+          classOf[Array[String]],
+          classOf[File],
+          classOf[Array[String]]
+        )
+      else
+        cls.getMethod("run",
+          classOf[File],
+          classOf[Boolean],
+          classOf[Array[String]],
+          classOf[File],
+          classOf[Array[String]],
+          classOf[java.util.List[File]]
+        )
+    }
+
+    def tweakedScriptedTask = Def.inputTask {
+
+      val args = ScriptedPlugin
+        .asInstanceOf[{
+          def scriptedParser(f: File): complete.Parser[Seq[String]]
+        }]
+        .scriptedParser(sbtTestDirectory.value)
+        .parsed
+
+      scriptedDependencies.value
+
+      try {
+        if (sbtVersion.in(pluginCrossBuild).value.startsWith("0.13."))
+          scriptedRun.value.invoke(
+            scriptedTests.value,
+            sbtTestDirectory.value,
+            scriptedBufferLog.value: java.lang.Boolean,
+            args.toArray,
+            sbtLauncher.value,
+            scriptedLaunchOpts.value.toArray
+          )
+        else
+          scriptedRun.value.invoke(
+            scriptedTests.value,
+            sbtTestDirectory.value,
+            scriptedBufferLog.value: java.lang.Boolean,
+            args.toArray,
+            sbtLauncher.value,
+            scriptedLaunchOpts.value.toArray,
+            new java.util.ArrayList()
+          )
+      } catch {
+        case e: java.lang.reflect.InvocationTargetException =>
+          throw e.getCause
+      }
+    }
+
+
     // see https://github.com/sbt/sbt/issues/3325#issuecomment-315670424
     scriptedSettings.filterNot(_.key.key.label == libraryDependencies.key.label) ++ Seq(
       libraryDependencies ++= {
@@ -33,8 +98,11 @@ object Aliases {
           case _ =>
             Seq()
         }
-      }
-  )
+      },
+      scriptedRun := tweakedScriptedRunTask.value,
+      scripted := tweakedScriptedTask.evaluated
+    )
+  }
 
   def hasITs = itSettings