diff --git a/config/pay-pocket.php b/config/pay-pocket.php
index 19d16f2..cc14ad4 100644
--- a/config/pay-pocket.php
+++ b/config/pay-pocket.php
@@ -5,8 +5,11 @@
     'log_reference_length' => 12,
     'log_reference_prefix' => null,
     /**
-     * The log reference generator should be static
-     * The third array item should contain optional parameters to pass to the generator
+     * The log reference generator should be a numeric array with 3 indexes
+     * First item should be a static class
+     * Second item sould be method availble in the static class
+     * third item should be an array of optional parameters to pass to the method
+     * The default generator looks like this: [\Illuminate\Support\Str::class, 'random', [12]]
      */
-    'log_reference_generator' => [\Illuminate\Support\Str::class, 'random', [15]],
+    'log_reference_generator' => null,
 ];
diff --git a/src/Models/WalletsLog.php b/src/Models/WalletsLog.php
index e278404..b7a4130 100644
--- a/src/Models/WalletsLog.php
+++ b/src/Models/WalletsLog.php
@@ -16,7 +16,7 @@ class WalletsLog extends Model
     use HasFactory;
 
     protected $fillable = [
-        'from', 'to', 'type', 'ip', 'value', 'wallet_name', 'notes',
+        'from', 'to', 'type', 'ip', 'value', 'wallet_name', 'notes', 'reference',
     ];
 
     public function loggable(): MorphTo
diff --git a/src/Traits/BalanceOperation.php b/src/Traits/BalanceOperation.php
index cf6ceb2..adc3783 100644
--- a/src/Traits/BalanceOperation.php
+++ b/src/Traits/BalanceOperation.php
@@ -43,7 +43,9 @@ protected function createLog($logType, $value, $notes = null): void
 
         $newBalance = $logType === 'dec' ? $currentBalance - $value : $currentBalance + $value;
 
-        $refGen = config('pay-pocket.log_reference_generator', [Str::class, 'random', [12]]);
+        $refGen = config('pay-pocket.log_reference_generator', [
+            Str::class, 'random', [config('pay-pocket.log_reference_length', 12)]
+        ]);
         $reference = config('pay-pocket.reference_string_prefix', '');
         $reference .= isset($refGen[0], $refGen[1])
             ? $refGen[0]::{$refGen[1]}(...$refGen[2] ?? [])
diff --git a/tests/OperationsWithFacadeTest.php b/tests/OperationsWithFacadeTest.php
index 6a44c9e..2421416 100644
--- a/tests/OperationsWithFacadeTest.php
+++ b/tests/OperationsWithFacadeTest.php
@@ -119,3 +119,13 @@
 
     expect(WalletsLog::where('notes', $description)->exists())->toBe(true);
 });
+
+test('transaction reference is added to wallet log', function () {
+    $user = User::factory()->create();
+
+    $type = 'wallet_2';
+
+    LaravelPayPocket::deposit($user, $type, 234.56);
+
+    expect(WalletsLog::whereNotNull('reference')->exists())->toBe(true);
+});
diff --git a/tests/OperationsWithoutFacadeTest.php b/tests/OperationsWithoutFacadeTest.php
index 6a9f3d8..e64143f 100644
--- a/tests/OperationsWithoutFacadeTest.php
+++ b/tests/OperationsWithoutFacadeTest.php
@@ -120,3 +120,13 @@
 
     expect(WalletsLog::where('notes', $description)->exists())->toBe(true);
 });
+
+test('transaction reference is added to wallet log', function () {
+    $user = User::factory()->create();
+
+    $type = 'wallet_2';
+
+    $user->deposit($type, 234.56);
+
+    expect(WalletsLog::whereNotNull('reference')->exists())->toBe(true);
+});