diff --git a/app/Transformers/Expense/Bill.php b/app/Transformers/Expense/Bill.php
index cc69156fe..a2dc2873b 100644
--- a/app/Transformers/Expense/Bill.php
+++ b/app/Transformers/Expense/Bill.php
@@ -50,7 +50,7 @@ class Bill extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {
diff --git a/app/Transformers/Expense/BillPayments.php b/app/Transformers/Expense/BillPayments.php
index d5a736fa1..ed314cc23 100644
--- a/app/Transformers/Expense/BillPayments.php
+++ b/app/Transformers/Expense/BillPayments.php
@@ -49,7 +49,7 @@ class BillPayments extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {
diff --git a/app/Transformers/Expense/Payment.php b/app/Transformers/Expense/Payment.php
index 658e47890..41c52e43b 100644
--- a/app/Transformers/Expense/Payment.php
+++ b/app/Transformers/Expense/Payment.php
@@ -61,7 +61,7 @@ class Payment extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {
diff --git a/app/Transformers/Income/Invoice.php b/app/Transformers/Income/Invoice.php
index c480af921..85edca96e 100644
--- a/app/Transformers/Income/Invoice.php
+++ b/app/Transformers/Income/Invoice.php
@@ -50,7 +50,7 @@ class Invoice extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {
diff --git a/app/Transformers/Income/InvoicePayments.php b/app/Transformers/Income/InvoicePayments.php
index 532085e8c..4e9cc72b4 100644
--- a/app/Transformers/Income/InvoicePayments.php
+++ b/app/Transformers/Income/InvoicePayments.php
@@ -49,7 +49,7 @@ class InvoicePayments extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {
diff --git a/app/Transformers/Income/Revenue.php b/app/Transformers/Income/Revenue.php
index 6d1aaedc7..daf7f7ec5 100644
--- a/app/Transformers/Income/Revenue.php
+++ b/app/Transformers/Income/Revenue.php
@@ -61,7 +61,7 @@ class Revenue extends TransformerAbstract
 
     /**
      * @param  Model $model
-     * @return mixed
+     * @return \League\Fractal\Resource\Item
      */
     public function includeCurrency(Model $model)
     {