diff --git a/eco b/eco
index edf6403..bcff2ba 100755
--- a/eco
+++ b/eco
@@ -3,4 +3,6 @@ default=sfb312
 dest=${1:-$default}
 source mm_bernina_env $dest
 
+unset SESSION_MANAGER # for qt error message in ipython
+
 ipython --pylab --profile=eco3 --no-banner -i -c "run /sf/bernina/config/src/python/eco/startup_inline_new.py -l -s bernina"