diff --git a/bumblebee/modules/traffic.py b/bumblebee/modules/traffic.py
index 08d838c..f74f7f9 100644
--- a/bumblebee/modules/traffic.py
+++ b/bumblebee/modules/traffic.py
@@ -56,13 +56,13 @@ class Module(bumblebee.engine.Module):
             widget_tx = self.widget(txname)
             if not widget_rx:
                 widget_rx = bumblebee.output.Widget(name=rxname)
-                widget_rx.set("theme-minwidth", "down 1000MB")
-                widget_rx.set("theme-align", "right")
+                widget_rx.set("theme.minwidth", "down 1000MB")
+                widget_rx.set("theme.align", "right")
                 widgets.append(widget_rx)
             if not widget_tx:
                 widget_tx = bumblebee.output.Widget(name=txname)
-                widget_tx.set("theme-minwidth", "down 1000MB")
-                widget_tx.set("theme-align", "right")
+                widget_tx.set("theme.minwidth", "down 1000MB")
+                widget_tx.set("theme.align", "right")
                 widgets.append(widget_tx)
 
             prev_rx = widget_rx.get("rx", 0)
diff --git a/bumblebee/theme.py b/bumblebee/theme.py
index a424f4a..0b2a724 100644
--- a/bumblebee/theme.py
+++ b/bumblebee/theme.py
@@ -139,7 +139,7 @@ class Theme(object):
                 state_themes.append(self._get(widget, state, {}))
 
         value = self._defaults.get(name, default)
-        value = widget.get("theme-{}".format(name), value)
+        value = widget.get("theme.{}".format(name), value)
         value = self._cycle.get(name, value)
         value = module_theme.get(name, value)