diff --git a/.coveragerc b/.coveragerc
index d66a17a6..5674f303 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -6,6 +6,8 @@ omit =
     # omit everything in
     # seismic/tasks/*
     # omit these files
+    seismic/pslog.py
+    seismic/scripts/event.py
 
 [report]
 # Regexes for lines to exclude from consideration
diff --git a/seismic/pickers.py b/seismic/pickers.py
index 9171ce22..f038e71b 100644
--- a/seismic/pickers.py
+++ b/seismic/pickers.py
@@ -15,8 +15,7 @@
 AGENCY_ID = 'GA'
 log = logging.getLogger(__name__)
 
-# TODO: check polarity definition with Alexei
-PickPolarityMap = {'D': "positive", 'C': "negative", '': "undecidable"}
+PickPolarityMap = {'C': "positive", 'D': "negative", '': "undecidable"}
 PY3 = (sys.version_info[0] == 3)