diff --git a/src/drivers/MssqlDriver.ts b/src/drivers/MssqlDriver.ts
index cdae412..968a9f5 100644
--- a/src/drivers/MssqlDriver.ts
+++ b/src/drivers/MssqlDriver.ts
@@ -340,7 +340,7 @@ export default class MssqlDriver extends AbstractDriver {
                 records.forEach((record) => {
                     indexInfo.columns.push(record.ColumnName);
                 });
-                ent.indices.push(indexInfo);
+                if (indexInfo.primary) ent.indices.push(indexInfo);
             });
         });