Fix LOG formatting error.

diff --git a/pyafm.py b/pyafm.py
index 5ff87bdfcb0f944605dbf66c6a950082e8322d81..7ef3a855fff0729c15c86ddd99f1c75f1b1a3ab5 100644 (file)
--- a/pyafm.py
+++ b/pyafm.py
@@ -110,7 +110,7 @@ class AFM (object):
                       % (self.stepper.position, pos, pos_m))
 
         LOG.debug('adjust the %s piezo to place us just onto the surface'
-                  self.axis_name)
+                  % self.axis_name)
         target_m = pos_m + depth
         target = _convert_meters_to_bits(
             axis.axis_channel_config, axis.axis_config, target_m)