diff --git a/src/analysis/conversion_type.rs b/src/analysis/conversion_type.rs
index 860736284..a57335a71 100644
--- a/src/analysis/conversion_type.rs
+++ b/src/analysis/conversion_type.rs
@@ -78,7 +78,7 @@ impl ConversionType {
                 IntPtr => ConversionType::Direct,
                 UIntPtr => ConversionType::Direct,
                 Bool => ConversionType::Direct,
-                Vulkan(_) => ConversionType::Direct,
+                Typedef(_) => ConversionType::Direct,
                 Unsupported => ConversionType::Unknown,
             },
             Alias(alias) if alias.c_identifier == "GQuark" => ConversionType::Scalar,
diff --git a/src/analysis/rust_type.rs b/src/analysis/rust_type.rs
index a6fe248bd..249a29d62 100644
--- a/src/analysis/rust_type.rs
+++ b/src/analysis/rust_type.rs
@@ -303,7 +303,7 @@ impl<'env> RustTypeBuilder<'env> {
                     Type => ok_and_use(&use_glib_type(self.env, "types::Type")),
                     Char => ok_and_use(&use_glib_type(self.env, "Char")),
                     UChar => ok_and_use(&use_glib_type(self.env, "UChar")),
-                    Vulkan(name) => ok_and_use(&format!("ash::vk::{}", name)),
+                    Typedef(name) => ok_and_use(name),
                     Unsupported => err("Unsupported"),
                     _ => err(&format!("Basic: {:?}", fund)),
                 }
diff --git a/src/codegen/sys/ffi_type.rs b/src/codegen/sys/ffi_type.rs
index 0f0720811..4977e8d71 100644
--- a/src/codegen/sys/ffi_type.rs
+++ b/src/codegen/sys/ffi_type.rs
@@ -110,7 +110,7 @@ fn ffi_inner(env: &Env, tid: library::TypeId, mut inner: String) -> Result {
                 UIntPtr => "uintptr_t",
                 Bool => "bool",
                 Unsupported => return Err(TypeError::Unimplemented(inner)),
-                Vulkan(v) => return Ok(format!("ash::vk::{}", v).into()),
+                Typedef(name) => return Ok(name.into()),
                 VarArgs => panic!("Should not reach here"),
             };
             Ok(inner.into())
diff --git a/src/custom_vulkan_namespace.rs b/src/custom_vulkan_namespace.rs
new file mode 100644
index 000000000..70a908457
--- /dev/null
+++ b/src/custom_vulkan_namespace.rs
@@ -0,0 +1,19 @@
+use crate::library::*;
+
+pub const VULKAN_NAMESPACE_NAME: &str = "Vulkan";
+
+impl Library {
+    pub fn tweak_vulkan_namespace(&mut self) {
+        if let Some(ns_id) = self.find_namespace(VULKAN_NAMESPACE_NAME) {
+            let ns = self.namespace_mut(ns_id);
+            for typ in &mut ns.types {
+                if let Some(Type::Record(rec)) = typ {
+                    *typ = Some(Type::Basic(Basic::Typedef(format!(
+                        "ash::vk::{}",
+                        rec.name
+                    ))));
+                }
+            }
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 5b909e094..397607399 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -24,6 +24,7 @@ mod codegen;
 mod config;
 mod consts;
 mod custom_type_glib_priority;
+mod custom_vulkan_namespace;
 mod env;
 mod file_saver;
 pub mod fmt;
diff --git a/src/library.rs b/src/library.rs
index f6f30b8da..44173a35c 100644
--- a/src/library.rs
+++ b/src/library.rs
@@ -240,7 +240,7 @@ pub enum Basic {
     OsString,
     Bool,
     Unsupported,
-    Vulkan(String),
+    Typedef(String),
 }
 
 impl Basic {
@@ -268,7 +268,7 @@ impl Basic {
                 | Self::Float
                 | Self::Double
                 | Self::Bool
-                | Self::Vulkan(_)
+                | Self::Typedef(_)
         )
     }
 }
@@ -1039,8 +1039,6 @@ impl Namespace {
 pub const INTERNAL_NAMESPACE_NAME: &str = "*";
 pub const INTERNAL_NAMESPACE: u16 = 0;
 pub const MAIN_NAMESPACE: u16 = 1;
-pub const VULKAN_NAMESPACE_NAME: &str = "Vulkan";
-pub const VULKAN_NAMESPACE: u16 = 2;
 
 #[derive(Debug)]
 pub struct Library {
@@ -1063,62 +1061,6 @@ impl Library {
         }
         assert_eq!(MAIN_NAMESPACE, library.add_namespace(main_namespace_name));
 
-        assert_eq!(
-            VULKAN_NAMESPACE,
-            library.add_namespace(VULKAN_NAMESPACE_NAME)
-        );
-        // TODO: This should be parseable from gir-files/Vulkan-1.0.gir!
-        const VULKAN: &[&str] = &[
-            "AccessFlags",
-            "Buffer",
-            "BufferUsageFlags",
-            "CommandBuffer",
-            "CommandBufferLevel",
-            "CommandPool",
-            "DescriptorPool",
-            "DescriptorSet",
-            "Device",
-            "DeviceMemory",
-            "DeviceSize",
-            "Fence",
-            "Format",
-            "Image",
-            "ImageCreateInfo",
-            "ImageFormatProperties",
-            "ImageLayout",
-            "ImageSubresourceRange",
-            "ImageTiling",
-            "ImageUsageFlags",
-            "ImageView",
-            "ImageViewCreateInfo",
-            "Instance",
-            "MemoryAllocateInfo",
-            "MemoryHeapFlags",
-            "MemoryPropertyFlags",
-            "MemoryRequirements",
-            "PhysicalDevice",
-            "PhysicalDeviceFeatures",
-            "PhysicalDeviceMemoryProperties",
-            "PhysicalDeviceProperties",
-            "PhysicalDeviceType",
-            "PipelineStageFlags",
-            "PresentModeKHR",
-            "Queue",
-            "QueueFamilyProperties",
-            "QueueFlags",
-            "Result",
-            "SampleCountFlags",
-            "Semaphore",
-            "SurfaceKHR",
-        ];
-        for v in VULKAN {
-            library.add_type(
-                VULKAN_NAMESPACE,
-                v,
-                Type::Basic(Basic::Vulkan(v.to_string())),
-            );
-        }
-
         //For string_type override
         Type::c_array(&mut library, TypeId::tid_utf8(), None, None);
         Type::c_array(&mut library, TypeId::tid_filename(), None, None);
diff --git a/src/library_preprocessing.rs b/src/library_preprocessing.rs
index f60a07b3b..0ab5634d1 100644
--- a/src/library_preprocessing.rs
+++ b/src/library_preprocessing.rs
@@ -3,5 +3,6 @@ use crate::{config::WorkMode, library::*};
 impl Library {
     pub fn preprocessing(&mut self, work_mode: WorkMode) {
         self.add_glib_priority(work_mode);
+        self.tweak_vulkan_namespace();
     }
 }