diff --git a/src/intel/vulkan/anv_extensions.py b/src/intel/vulkan/anv_extensions.py
index 8ddb8f98686..d1db847b4c4 100644
--- a/src/intel/vulkan/anv_extensions.py
+++ b/src/intel/vulkan/anv_extensions.py
@@ -32,8 +32,6 @@ sys.path.append(VULKAN_UTIL)
 
 from vk_extensions import *
 
-API_PATCH_VERSION = 145
-
 # Supported API versions.  Each one is the maximum patch version for the given
 # version.  Version come in increasing order and each version is available if
 # it's provided "enable" condition is true and all previous versions are
@@ -204,6 +202,5 @@ for i in range(len(EXTENSIONS) - 1):
 MAX_API_VERSION = VkVersion('0.0.0')
 for version in API_VERSIONS:
     version.version = VkVersion(version.version)
-    version.version.patch = API_PATCH_VERSION
     assert version.version > MAX_API_VERSION
     MAX_API_VERSION = version.version
diff --git a/src/intel/vulkan/anv_extensions_gen.py b/src/intel/vulkan/anv_extensions_gen.py
index 3b49c8a5f50..07a684d8388 100644
--- a/src/intel/vulkan/anv_extensions_gen.py
+++ b/src/intel/vulkan/anv_extensions_gen.py
@@ -25,7 +25,9 @@ COPYRIGHT = """\
 """
 
 import os.path
+import re
 import sys
+import xml.etree.ElementTree as et
 
 from anv_extensions import *
 
@@ -34,6 +36,18 @@ sys.path.append(VULKAN_UTIL)
 
 from vk_extensions_gen import *
 
+def get_xml_patch_version(xml_file):
+    xml = et.parse(xml_file)
+    for d in xml.findall('.types/type'):
+        if d.get('category', None) != 'define':
+            continue
+
+        name = d.find('.name')
+        if name.text != 'VK_HEADER_VERSION':
+            continue;
+
+        return name.tail.strip()
+
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('--out-c', help='Output C file.')
@@ -49,5 +63,8 @@ if __name__ == '__main__':
         "perf/gen_perf.h"
     ]
 
-    gen_extensions('anv', args.xml_files, API_VERSIONS, MAX_API_VERSION,
+    max_version = MAX_API_VERSION
+    max_version.patch = int(get_xml_patch_version(args.xml_files[0]))
+
+    gen_extensions('anv', args.xml_files, API_VERSIONS, max_version,
                    EXTENSIONS, args.out_c, args.out_h, includes)