diff --git a/pyqtgraph/graphicsItems/AxisItem.py b/pyqtgraph/graphicsItems/AxisItem.py
index af393fdc..5eef4ae0 100644
--- a/pyqtgraph/graphicsItems/AxisItem.py
+++ b/pyqtgraph/graphicsItems/AxisItem.py
@@ -233,7 +233,7 @@ class AxisItem(GraphicsWidget):
                         without any scaling prefix (eg, 'V' instead of 'mV'). The
                         scaling prefix will be automatically prepended based on the
                         range of data displayed.
-        **args         All extra keyword arguments become CSS style options for
+        **args          All extra keyword arguments become CSS style options for
                         the <span> tag which will surround the axis label and units.
         ==============  =============================================================