diff --git a/src/index.ts b/src/index.ts
index 9376139..2c8abc0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -379,7 +379,7 @@ export class SqlSimpleParser {
           propertyType.indexOf(Foreign_Key) != -1 ||
           propertyType.indexOf(CONSTRAINT_Foreign_Key) != -1
         ) {
-          if (!this.MODE_SQLSERVER) {
+          if (!this.MODE_SQLSERVER || propertyRow.indexOf(AlterTable) == -1) {
             this.ParseMySQLForeignKey(name, currentTableModel);
           } else {
             var completeRow = name;
diff --git a/tests/SqlSimpleParser/examples_models.spec.ts b/tests/SqlSimpleParser/examples_models.spec.ts
index 73e66c0..eb8acd6 100644
--- a/tests/SqlSimpleParser/examples_models.spec.ts
+++ b/tests/SqlSimpleParser/examples_models.spec.ts
@@ -148,7 +148,7 @@ describe("Example Sql Parsing", () => {
     // console.log(sql);
 
     // run parser
-    const parser = new SqlSimpleParser("postgres");
+    const parser = new SqlSimpleParser("sqlserver");
 
     // get models
     const result = parser.feed(sql).ToModel();
@@ -172,6 +172,7 @@ describe("Example Sql Parsing", () => {
     // );
     expect(1).toBeTruthy();
   });
+
   it("Run Parser postgres simple", async () => {
     // load sql
     var sql = `CREATE TABLE "humanresources_department" (
diff --git a/tests/data/results/ToModel.json b/tests/data/results/ToModel.json
index 5fb8228..d162a87 100644
--- a/tests/data/results/ToModel.json
+++ b/tests/data/results/ToModel.json
@@ -20604,7 +20604,7 @@
                 ]
             }
         ],
-        "Dialect": "postgres",
+        "Dialect": "sqlserver",
         "ForeignKeyList": [
             {
                 "PrimaryKeyTableName": "Orders",