diff --git a/implementations/Nim/joy.nim b/implementations/Nim/joy.nim
index 199441a..5e56c91 100644
--- a/implementations/Nim/joy.nim
+++ b/implementations/Nim/joy.nim
@@ -636,5 +636,5 @@ while true:
   try:
     (s, d) = joy(s, exp, d)
   except:
-    echo getCurrentExceptionMsg()
+    writeLine(stderr, getCurrentExceptionMsg())
   echo print_stack(s)