diff --git a/vulkan-sys/src/structs/khr/presentinfokhr.rs b/vulkan-sys/src/structs/khr/presentinfokhr.rs
index 1a5bc19..0b1f7f1 100644
--- a/vulkan-sys/src/structs/khr/presentinfokhr.rs
+++ b/vulkan-sys/src/structs/khr/presentinfokhr.rs
@@ -1,5 +1,5 @@
 use crate::prelude::*;
-use crate::structs::raw_to_slice;
+use crate::structs::{raw_to_slice, raw_to_slice_mut};
 
 use std::os::raw::c_void;
 use std::ptr;
@@ -74,11 +74,11 @@ impl VkPresentInfoKHR {
         swapchain_infos
     }
 
-    pub fn results(&self) -> &[VkResult] {
-        if self.waitSemaphoreCount == 0 || self.pResults != ptr::null_mut() {
-            &[]
+    pub fn results(&mut self) -> &mut [VkResult] {
+        if self.swapchainCount == 0 || self.pResults != ptr::null_mut() {
+            &mut []
         } else {
-            raw_to_slice(self.pResults, self.waitSemaphoreCount)
+            raw_to_slice_mut(self.pResults, self.swapchainCount)
         }
     }
 }
diff --git a/vulkan-sys/src/structs/mod.rs b/vulkan-sys/src/structs/mod.rs
index 2891649..1d96b9e 100644
--- a/vulkan-sys/src/structs/mod.rs
+++ b/vulkan-sys/src/structs/mod.rs
@@ -21,3 +21,7 @@ use std::slice;
 fn raw_to_slice<'a, T: Clone>(pointer: *const T, size: u32) -> &'a [T] {
     unsafe { slice::from_raw_parts(pointer, size as usize) }
 }
+
+fn raw_to_slice_mut<'a, T: Clone>(pointer: *mut T, size: u32) -> &'a mut [T] {
+    unsafe { slice::from_raw_parts_mut(pointer, size as usize) }
+}