diff --git a/vulkan.py b/vulkan.py
index 9301b51..9a708fa 100755
--- a/vulkan.py
+++ b/vulkan.py
@@ -632,10 +632,11 @@
         Proto("void", "CmdBindDescriptorSets",
             [Param("VkCmdBuffer", "cmdBuffer"),
              Param("VkPipelineBindPoint", "pipelineBindPoint"),
-             Param("uint32_t", "layoutChainSlot"),
-             Param("uint32_t", "count"),
+             Param("uint32_t", "firstSet"),
+             Param("uint32_t", "setCount"),
              Param("const VkDescriptorSet*", "pDescriptorSets"),
-             Param("const uint32_t*", "pUserData")]),
+             Param("uint32_t", "dynamicOffsetCount"),
+             Param("const uint32_t*", "pDynamicOffsets")]),
 
         Proto("void", "CmdBindVertexBuffers",
             [Param("VkCmdBuffer", "cmdBuffer"),