diff --git a/field_test.go b/field_test.go
index 51792e453..4ccad9bde 100644
--- a/field_test.go
+++ b/field_test.go
@@ -165,7 +165,7 @@ func TestField_NameValidation(t *testing.T) {
 		"camelCase",
 		"UPPERCASE",
 		".meta",
-		"charact30112345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901123456789012345678901234567790123456789012345678901234567890123456789012",
+		"charact23112345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901"
 	}
 
 	_, idx := test.MustOpenIndex(t)