diff --git a/callback_query_preload.go b/callback_query_preload.go
index a4b1cf1f..4d2678bd 100644
--- a/callback_query_preload.go
+++ b/callback_query_preload.go
@@ -104,8 +104,15 @@ func (scope *Scope) handleHasOnePreload(field *Field, conditions []interface{})
 	preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
 
 	// find relations
+	query := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys))
+	values := toQueryValues(primaryKeys)
+	if relation.PolymorphicType != "" {
+		query += fmt.Sprintf(" AND %v = ?", scope.Quote(relation.PolymorphicDBName))
+		values = append(values, scope.TableName())
+	}
+
 	results := makeSlice(field.Struct.Type)
-	scope.Err(preloadDB.Where(fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys)), toQueryValues(primaryKeys)...).Find(results, preloadConditions...).Error)
+	scope.Err(preloadDB.Where(query, values...).Find(results, preloadConditions...).Error)
 
 	// assign find results
 	var (
@@ -143,8 +150,15 @@ func (scope *Scope) handleHasManyPreload(field *Field, conditions []interface{})
 	preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
 
 	// find relations
+	query := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys))
+	values := toQueryValues(primaryKeys)
+	if relation.PolymorphicType != "" {
+		query += fmt.Sprintf(" AND %v = ?", scope.Quote(relation.PolymorphicDBName))
+		values = append(values, scope.TableName())
+	}
+
 	results := makeSlice(field.Struct.Type)
-	scope.Err(preloadDB.Where(fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys)), toQueryValues(primaryKeys)...).Find(results, preloadConditions...).Error)
+	scope.Err(preloadDB.Where(query, values...).Find(results, preloadConditions...).Error)
 
 	// assign find results
 	var (