diff --git a/src/Vulkan/VkPhysicalDevice.cpp b/src/Vulkan/VkPhysicalDevice.cpp
index 39b56e2..f53c326 100644
--- a/src/Vulkan/VkPhysicalDevice.cpp
+++ b/src/Vulkan/VkPhysicalDevice.cpp
@@ -91,7 +91,7 @@
 		VK_FALSE,  // textureCompressionASTC_LDR
 #endif
 		VK_TRUE,   // textureCompressionBC
-		VK_FALSE,  // occlusionQueryPrecise
+		VK_TRUE,   // occlusionQueryPrecise
 		VK_FALSE,  // pipelineStatisticsQuery
 		VK_TRUE,   // vertexPipelineStoresAndAtomics
 		VK_TRUE,   // fragmentStoresAndAtomics
diff --git a/src/Vulkan/VkQueryPool.cpp b/src/Vulkan/VkQueryPool.cpp
index b313620..2105608 100644
--- a/src/Vulkan/VkQueryPool.cpp
+++ b/src/Vulkan/VkQueryPool.cpp
@@ -192,7 +192,8 @@
 {
 	ASSERT(query < count);
 
-	if(flags != 0)
+	// Only accept flags with valid bits set.
+	if(flags & ~(VK_QUERY_CONTROL_PRECISE_BIT))
 	{
 		UNSUPPORTED("vkCmdBeginQuery::flags %d", int(flags));
 	}