diff --git a/beams/tree_config/action.py b/beams/tree_config/action.py
index 012dff7..7ab88c4 100644
--- a/beams/tree_config/action.py
+++ b/beams/tree_config/action.py
@@ -37,7 +37,7 @@ def work_func(comp_condition: Evaluatable) -> py_trees.common.Status:
 
                 # specific caput logic to SetPVActionItem
                 caput(self.pv, self.value)
-                logger.debug(f" <<-- ({self.name}): caput({self.pv}, {value})")
+                logger.debug(f" <<-- ({self.name}): caput({self.pv}, {self.value})")
                 return py_trees.common.Status.RUNNING
             except Exception as ex:
                 logger.warning(f" <<-- ({self.name}): work failed, {ex}")