diff --git a/database/migrations/2020_01_10_075852_alter_mpls_lsp_paths_table.php b/database/migrations/2020_01_10_075852_alter_mpls_lsp_paths_table.php
new file mode 100644
index 0000000000..be1ee50cd7
--- /dev/null
+++ b/database/migrations/2020_01_10_075852_alter_mpls_lsp_paths_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AlterMplsLspPathsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        DB::connection()->getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');
+        Schema::table('mpls_lsp_paths', function (Blueprint $table) {
+            $table->unsignedInteger('mplsLspPathOperMetric')->nullable()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('mpls_lsp_paths', function (Blueprint $table) {
+            $table->unsignedInteger('mplsLspPathOperMetric')->change();
+        });
+    }
+}
diff --git a/misc/db_schema.yaml b/misc/db_schema.yaml
index 766fb8ad38..9a93d233f1 100644
--- a/misc/db_schema.yaml
+++ b/misc/db_schema.yaml
@@ -949,7 +949,7 @@ mpls_lsp_paths:
     - { Field: mplsLspPathFailCode, Type: varchar(64), 'Null': false, Extra: '' }
     - { Field: mplsLspPathFailNodeAddr, Type: varchar(32), 'Null': false, Extra: '' }
     - { Field: mplsLspPathMetric, Type: 'int(10) unsigned', 'Null': false, Extra: '' }
-    - { Field: mplsLspPathOperMetric, Type: 'int(10) unsigned', 'Null': false, Extra: '' }
+    - { Field: mplsLspPathOperMetric, Type: 'int(10) unsigned', 'Null': true, Extra: '' }
     - { Field: mplsLspPathTimeUp, Type: bigint(20), 'Null': true, Extra: '' }
     - { Field: mplsLspPathTimeDown, Type: bigint(20), 'Null': true, Extra: '' }
     - { Field: mplsLspPathTransitionCount, Type: 'int(10) unsigned', 'Null': true, Extra: '' }