diff --git a/main-command/src/main/scala/sbt/State.scala b/main-command/src/main/scala/sbt/State.scala
index 1d044cb3c..d7db6a51f 100644
--- a/main-command/src/main/scala/sbt/State.scala
+++ b/main-command/src/main/scala/sbt/State.scala
@@ -445,6 +445,7 @@ object State {
     s.fail
   }
   private[sbt] def logFullException(e: Throwable, log: Logger): Unit = {
+    e.printStackTrace(System.err)
     log.trace(e)
     log.error(ErrorHandling reducedToString e)
     log.error("Use 'last' for the full log.")