diff --git a/influxgraph.py b/influxgraph.py
index 2d7bcba..90e453c 100644
--- a/influxgraph.py
+++ b/influxgraph.py
@@ -254,7 +254,7 @@ class InfluxGraph(HandlerBase):
             add_to_groups(var, unit=unit)
         # make order a bit more common
         result = []
-        for key in ['K', 'T', 'W', 'ln/min'] + list(groups):
+        for key in ['K', 'degC', 'T', 'W', 'ln/min'] + list(groups):
             if key in groups:
                 group = groups.pop(key)
                 curve_dict = group['curves']