diff --git a/base/VulkanDevice.cpp b/base/VulkanDevice.cpp
index 77e20b65..b063334d 100644
--- a/base/VulkanDevice.cpp
+++ b/base/VulkanDevice.cpp
@@ -273,10 +273,11 @@ namespace vks
 
 		if (deviceExtensions.size() > 0)
 		{
-			for (const char* ext : deviceExtensions)
+			for (const char* enabledExtension : deviceExtensions)
 			{
-				if (!extensionSupported(ext))
-					std::cerr << ext << " device extension support seems to be missing" << std::endl;
+				if (!extensionSupported(enabledExtension)) {
+					std::cerr << "Enabled device extension \"" << enabledExtension << "\" is not present at device level\n";
+				}
 			}
 
 			deviceCreateInfo.enabledExtensionCount = (uint32_t)deviceExtensions.size();
diff --git a/base/vulkanexamplebase.cpp b/base/vulkanexamplebase.cpp
index a6069aac..b4a6710b 100644
--- a/base/vulkanexamplebase.cpp
+++ b/base/vulkanexamplebase.cpp
@@ -53,9 +53,9 @@ VkResult VulkanExampleBase::createInstance(bool enableValidation)
 		std::vector<VkExtensionProperties> extensions(extCount);
 		if (vkEnumerateInstanceExtensionProperties(nullptr, &extCount, &extensions.front()) == VK_SUCCESS)
 		{
-			for (auto ext : extensions)
+			for (VkExtensionProperties extension : extensions)
 			{
-				supportedInstanceExtensions.push_back(ext.extensionName);
+				supportedInstanceExtensions.push_back(extension.extensionName);
 			}
 		}
 	}
@@ -63,7 +63,7 @@ VkResult VulkanExampleBase::createInstance(bool enableValidation)
 	// Enabled requested instance extensions
 	if (enabledInstanceExtensions.size() > 0) 
 	{
-		for (auto enabledExtension : enabledInstanceExtensions) 
+		for (const char * enabledExtension : enabledInstanceExtensions) 
 		{
 			// Output message if requested extension is not available
 			if (std::find(supportedInstanceExtensions.begin(), supportedInstanceExtensions.end(), enabledExtension) == supportedInstanceExtensions.end())