diff --git a/snuba_sdk/arithmetic.py b/snuba_sdk/arithmetic.py
index 4a2d6e78..1fcb291e 100644
--- a/snuba_sdk/arithmetic.py
+++ b/snuba_sdk/arithmetic.py
@@ -8,6 +8,7 @@
 class InvalidArithmeticError(InvalidExpressionError):
     pass
 
+
 class ArithmeticFunction(Enum):
     PLUS = "plus"
     MINUS = "minus"