diff --git a/7-traps-&-gotchas.md b/7-traps-&-gotchas.md
index ce1812e..318d5fe 100644
--- a/7-traps-&-gotchas.md
+++ b/7-traps-&-gotchas.md
@@ -10,7 +10,7 @@ Though it has translation problems. using
 
      `    pyuic4  /src/bitmessageqt/bitmessageui.ui   -o  src/bitmessageqt/bitmessageui.py ` after editing with Qt4-Designer  will break the whole app now.
 
-
+* even though running   ` ./bitmessagemain.py ` straight away used to work, it is better to run   ` python2 setup.py build  `  before to avoid crashed (e.g. Fedora)