1 files changed, 1 insertions, 1 deletions
diff --git a/calc.go b/calc.go
index d650eca..59d97e0 100644
--- a/calc.go
+++ b/calc.go
@@ -158,7 +158,7 @@ type formulaCriteria struct {
 	Condition string
 }
 
-// ArgType is the type if formula argument type.
+// ArgType is the type of formula argument type.
 type ArgType byte
 
 // Formula argument types enumeration.