De-dupe comment.
diff --git a/sql.go b/sql.go
index 586020c..d015bfd 100644
--- a/sql.go
+++ b/sql.go
@@ -59,7 +59,7 @@
 }
 
 // Value implements sql.Valuer so that UUIDs can be written to databases
-// transparently. Currently, UUIDs map map to strings. Please consult
+// transparently. Currently, UUIDs map to strings. Please consult
 // database-specific driver documentation for matching types.
 func (uuid UUID) Value() (driver.Value, error) {
 	return uuid.String(), nil