diff --git a/src/vk/vk_common.c b/src/vk/vk_common.c
index daa094c..0afd47a 100644
--- a/src/vk/vk_common.c
+++ b/src/vk/vk_common.c
@@ -1752,7 +1752,7 @@ qboolean QVk_Init(void)
 	if (vk_validation->value)
 		extCount++;
 
-#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)
+#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME) && defined(__APPLE__)
 	extCount++;
 #endif
 
@@ -1772,7 +1772,7 @@ qboolean QVk_Init(void)
 		wantedExtensions[extCount - 1] = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
 	}
 
-#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)
+#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME) && defined(__APPLE__)
 	extCount++;
 	wantedExtensions[extCount - 1] = VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME;
 #endif
@@ -1789,7 +1789,7 @@ qboolean QVk_Init(void)
 		.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
 		.pNext = NULL,
 		.pApplicationInfo = &appInfo,
-#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)
+#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME) && defined(__APPLE__)
 		.flags = VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR,
 #endif
 		.enabledLayerCount = 0,
diff --git a/src/vk/vk_device.c b/src/vk/vk_device.c
index 0252343..7b4a372 100644
--- a/src/vk/vk_device.c
+++ b/src/vk/vk_device.c
@@ -80,7 +80,7 @@ static void getBestPhysicalDevice(const VkPhysicalDevice *devices, int preferred
 			// no required extensions? try next device
 				continue;
 
-#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)
+#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME) && defined(__APPLE__)
 			if (!deviceExtensionsSupported(&devices[i], VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME))
 				continue;
 #endif
@@ -237,7 +237,7 @@ static VkResult createLogicalDevice()
 
 	const char *deviceExtensions[] = {
 		VK_KHR_SWAPCHAIN_EXTENSION_NAME,
-#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)
+#if defined(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME) && defined(__APPLE__)
 		VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME,
 #endif
 	};