Fix typo.
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDescriptorSet.mm b/MoltenVK/MoltenVK/GPUObjects/MVKDescriptorSet.mm
index 9b2526d..32decbd 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDescriptorSet.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDescriptorSet.mm
@@ -569,7 +569,7 @@
 		return _preallocatedDescriptors->allocateDescriptor(descriptorType, pMVKDesc);
 	}
 
-	// Otherwise instantiate one of the apporpriate type now
+	// Otherwise instantiate one of the appropriate type now
 	switch (descriptorType) {
 		case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
 			*pMVKDesc = new MVKUniformBufferDescriptor();