diff --git a/pykat/__init__.py b/pykat/__init__.py
index 8bcc2492eb6a44bc94bc1c9510c3ffcd76eefd57..1147e02ce2903a56ba52a8ad3cddf641a958741c 100644
--- a/pykat/__init__.py
+++ b/pykat/__init__.py
@@ -3,7 +3,7 @@ from __future__ import division
 from __future__ import print_function
 from __future__ import unicode_literals
 
-__version__ = "0.8.5"
+__version__ = "0.8.6"
 
 # This flag is used to switch on the gui features in pkat at import time
 USE_GUI = False
diff --git a/pykat/detectors.py b/pykat/detectors.py
index a065e028035595df82c4e3fe1b5e4710a9480b9d..f9d9fa2097f7de4003e22ff2e9e23777cecee7b1 100644
--- a/pykat/detectors.py
+++ b/pykat/detectors.py
@@ -508,14 +508,14 @@ class pd(Detector1):
         self.__f4 = Param("f4", self, None)
         self.__f5 = Param("f5", self, None)
         
-        self.__phi1 = Param("phase1", self, None)
-        self.__phi2 = Param("phase2", self, None)
-        self.__phi3 = Param("phase3", self, None)
-        self.__phi4 = Param("phase4", self, None)
-        self.__phi5 = Param("phase5", self, None)
+        self.__phase1 = Param("phase1", self, None)
+        self.__phase2 = Param("phase2", self, None)
+        self.__phase3 = Param("phase3", self, None)
+        self.__phase4 = Param("phase4", self, None)
+        self.__phase5 = Param("phase5", self, None)
         
         fs = [self.__f1, self.__f2, self.__f3, self.__f4, self.__f5]
-        ps = [self.__phi1, self.__phi2, self.__phi3, self.__phi4, self.__phi5]
+        ps = [self.__phase1, self.__phase2, self.__phase3, self.__phase4, self.__phase5]
 
         for i in range(num_demods):
             f = 'f{0}'.format(i+1)