diff --git a/Gems/InAppPurchases/Code/Source/InAppPurchasesSystemComponent.cpp b/Gems/InAppPurchases/Code/Source/InAppPurchasesSystemComponent.cpp
index fd1f4146dc..824208e918 100644
--- a/Gems/InAppPurchases/Code/Source/InAppPurchasesSystemComponent.cpp
+++ b/Gems/InAppPurchases/Code/Source/InAppPurchasesSystemComponent.cpp
@@ -329,7 +329,7 @@ namespace InAppPurchases
         {
             if (m_productInfoIndex < 0)
             {
-                m_productInfoIndex = productDetails->size() - 1;
+                m_productInfoIndex = static_cast<int>(productDetails->size() - 1);
             }
 
             if (productDetails->size() > 0)
@@ -375,7 +375,7 @@ namespace InAppPurchases
         {
             if (m_purchasedProductInfoIndex < 0)
             {
-                m_purchasedProductInfoIndex = purchasedProductDetails->size() - 1;
+                m_purchasedProductInfoIndex = static_cast<int>(purchasedProductDetails->size() - 1);
             }
 
             if (purchasedProductDetails->size() > 0)