diff --git a/src/main/kotlin/com/beust/kobalt/misc/KobaltExecutors.kt b/src/main/kotlin/com/beust/kobalt/misc/KobaltExecutors.kt
index 1e2bc235..eb41ec5b 100644
--- a/src/main/kotlin/com/beust/kobalt/misc/KobaltExecutors.kt
+++ b/src/main/kotlin/com/beust/kobalt/misc/KobaltExecutors.kt
@@ -35,7 +35,7 @@ class KobaltExecutor(name: String, threadCount: Int)
             }
         }
         if (ex != null) {
-            error(if (ex.message != null) ex.message!! else ex.javaClass.toString())
+            error(ex.toString())
         }
     }
 }