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-rw-r--r--pint/util.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pint/util.py b/pint/util.py
index 54a7755..0152e66 100644
--- a/pint/util.py
+++ b/pint/util.py
@@ -641,7 +641,7 @@ class ParserHelper(UnitsContainer):
for k in list(ret):
if k.lower() == "nan":
del ret._d[k]
- ret.scale = math.nan
+ ret.scale = non_int_type(math.nan)
return ret