diff --git a/rule/enforce-map-style.go b/rule/enforce-map-style.go
index 48b3bd33e..baa8c2b7d 100644
--- a/rule/enforce-map-style.go
+++ b/rule/enforce-map-style.go
@@ -37,7 +37,7 @@ func mapStyleFromString(s string) (enforceMapStyleType, error) {
 	}
 }
 
-// EnforceMapStyleRule implements a rule to enforce `make(map[type]type)` over `map[type]type{}`
+// EnforceMapStyleRule implements a rule to enforce `make(map[type]type)` over `map[type]type{}`.
 type EnforceMapStyleRule struct {
 	configured      bool
 	enforceMapStyle enforceMapStyleType