diff --git a/vulkan-rs/src/device.rs b/vulkan-rs/src/device.rs
index e447f13..b6cfbc9 100644
--- a/vulkan-rs/src/device.rs
+++ b/vulkan-rs/src/device.rs
@@ -1750,13 +1750,6 @@ impl Device {
         begin_info: &VkCommandBufferBeginInfo,
     ) -> Result<()> {
         unsafe {
-            if std::mem::transmute::<PFN_vkBeginCommandBuffer, *const c_void>(
-                self.device_functions.vkBeginCommandBuffer,
-            ) == ptr::null()
-            {
-                return Err(anyhow::anyhow!("vkBeginCommandBuffer is null"));
-            }
-
             let result = self
                 .device_functions
                 .vkBeginCommandBuffer(command_buffer, begin_info);