diff --git a/gui/boosterView.py b/gui/boosterView.py
index 7cddf2e3b..b86fee5cc 100644
--- a/gui/boosterView.py
+++ b/gui/boosterView.py
@@ -27,8 +27,9 @@ from gui.contextMenu import ContextMenu
 
 class BoosterView(d.Display):
     DEFAULT_COLS = ["Activity Checkbox",
-                    "attr:boosterness"
-                    "Name"]
+                    "attr:boosterness",
+                    "Name",
+                    ]
 
     def __init__(self, parent):
         d.Display.__init__(self, parent)