diff --git a/src/Nazara/VulkanRenderer/Vulkan.cpp b/src/Nazara/VulkanRenderer/Vulkan.cpp
index 0827bc030..ce43249d3 100644
--- a/src/Nazara/VulkanRenderer/Vulkan.cpp
+++ b/src/Nazara/VulkanRenderer/Vulkan.cpp
@@ -41,7 +41,7 @@ namespace Nz
 
 	bool Vulkan::Initialize(UInt32 apiVersion, const ParameterList& parameters)
 	{
-		NazaraAssert(!s_instance.IsValid(), "Vulkan is already initialized");
+		NazaraAssert(!IsInitialized(), "Vulkan is already initialized");
 
 		// Initialize module here
 		if (!Vk::Loader::Initialize())
@@ -220,6 +220,11 @@ namespace Nz
 		return true;
 	}
 
+	bool Vulkan::IsInitialized()
+	{
+		return s_instance.IsValid();
+	}
+
 	Vk::DeviceHandle Vulkan::CreateDevice(VkPhysicalDevice gpu, const Vk::Surface& surface, UInt32* presentableFamilyQueue)
 	{
 		Nz::ErrorFlags errFlags(ErrorFlag_ThrowException, true);