diff --git a/schema/naming.go b/schema/naming.go
index 125094bc..47a2b363 100644
--- a/schema/naming.go
+++ b/schema/naming.go
@@ -3,7 +3,6 @@ package schema
 import (
 	"crypto/sha1"
 	"encoding/hex"
-	"fmt"
 	"regexp"
 	"strings"
 	"unicode/utf8"
@@ -95,7 +94,7 @@ func (ns NamingStrategy) formatName(prefix, table, name string) string {
 		h.Write([]byte(formattedName))
 		bs := h.Sum(nil)
 
-		formattedName = fmt.Sprintf("%v%v%v", prefix, table, name)[0:56] + hex.EncodeToString(bs)[:8]
+		formattedName = formattedName[0:56] + hex.EncodeToString(bs)[:8]
 	}
 	return formattedName
 }
diff --git a/schema/naming_test.go b/schema/naming_test.go
index 1fdab9a0..3f598c33 100644
--- a/schema/naming_test.go
+++ b/schema/naming_test.go
@@ -193,7 +193,7 @@ func TestFormatNameWithStringLongerThan64Characters(t *testing.T) {
 	ns := NamingStrategy{}
 
 	formattedName := ns.formatName("prefix", "table", "thisIsAVeryVeryVeryVeryVeryVeryVeryVeryVeryLongString")
-	if formattedName != "prefixtablethisIsAVeryVeryVeryVeryVeryVeryVeryVeryVeryLo180f2c67" {
+	if formattedName != "prefix_table_thisIsAVeryVeryVeryVeryVeryVeryVeryVeryVery180f2c67" {
 		t.Errorf("invalid formatted name generated, got %v", formattedName)
 	}
 }
diff --git a/schema/relationship_test.go b/schema/relationship_test.go
index e2cf11a9..40ffc324 100644
--- a/schema/relationship_test.go
+++ b/schema/relationship_test.go
@@ -576,3 +576,39 @@ func TestHasManySameForeignKey(t *testing.T) {
 		References: []Reference{{"ID", "User", "UserRefer", "Profile", "", true}},
 	})
 }
+
+type Author struct {
+	gorm.Model
+}
+
+type Book struct {
+	gorm.Model
+	Author   Author
+	AuthorID uint
+}
+
+func (Book) TableName() string {
+	return "my_schema.a_very_very_very_very_very_very_very_very_long_table_name"
+}
+
+func TestParseConstraintNameWithSchemaQualifiedLongTableName(t *testing.T) {
+	s, err := schema.Parse(
+		&Book{},
+		&sync.Map{},
+		schema.NamingStrategy{},
+	)
+	if err != nil {
+		t.Fatalf("Failed to parse schema")
+	}
+
+	expectedConstraintName := "fk_my_schema_a_very_very_very_very_very_very_very_very_l4db13eec"
+	constraint := s.Relationships.Relations["Author"].ParseConstraint()
+
+	if constraint.Name != expectedConstraintName {
+		t.Fatalf(
+			"expected constraint name %s, got %s",
+			expectedConstraintName,
+			constraint.Name,
+		)
+	}
+}