Index: wflow/wflow_funcs.py
===================================================================
diff -u -rc427e9b948a7fbad40a1c828b68355cb277dc5e0 -ra9498adee6baab0a0abaa331041be8948510167b
--- wflow/wflow_funcs.py	(.../wflow_funcs.py)	(revision c427e9b948a7fbad40a1c828b68355cb277dc5e0)
+++ wflow/wflow_funcs.py	(.../wflow_funcs.py)	(revision a9498adee6baab0a0abaa331041be8948510167b)
@@ -126,7 +126,7 @@
     pt = 0.1 * p
 
     # Amount of P that falls on the canopy
-    Pfrac = pcr.max((1 - p - pt),0) * Precipitation
+    Pfrac = pcr.max((1 - p - pt), 0) * Precipitation
 
     # S cannot be larger than Cmax, no gravity drainage below that
     DD = pcr.ifthenelse(CanopyStorage > Cmax, CanopyStorage - Cmax, 0.0)