diff --git a/Makefile b/Makefile
index 5769d2a1..f505dd81 100644
--- a/Makefile
+++ b/Makefile
@@ -71,7 +71,7 @@ vendor/llhttp/node_modules: vendor/llhttp/package.json
 generate-llhttp: .llhttp-gen
 
 .PHONY: cythonize
-cythonize: .install-cython $(PYXS:.pyx=.c)
+cythonize: $(PYXS:.pyx=.c)
 
 .install-deps: .install-cython $(PYXS:.pyx=.c) $(call to-hash,$(CYS) $(REQS))
 	@python -m pip install -r requirements/dev.txt -c requirements/constraints.txt
diff --git a/aiohttp/_cparser.pxd b/aiohttp/_cparser.pxd
index 165dd61d..bc6bf86d 100644
--- a/aiohttp/_cparser.pxd
+++ b/aiohttp/_cparser.pxd
@@ -10,7 +10,7 @@ from libc.stdint cimport (
 )
 
 
-cdef extern from "../vendor/llhttp/build/llhttp.h":
+cdef extern from "@llhttpDev@/include/llhttp.h":
 
     struct llhttp__internal_s:
         int32_t _index
diff --git a/setup.py b/setup.py
index 4d59a022..d87d5b69 100644
--- a/setup.py
+++ b/setup.py
@@ -17,13 +17,6 @@ if sys.implementation.name != "cpython":
     NO_EXTENSIONS = True
 
 
-if IS_GIT_REPO and not (HERE / "vendor/llhttp/README.md").exists():
-    print("Install submodules when building from git clone", file=sys.stderr)
-    print("Hint:", file=sys.stderr)
-    print("  git submodule update --init", file=sys.stderr)
-    sys.exit(2)
-
-
 # NOTE: makefile cythonizes all Cython modules
 
 extensions = [
@@ -33,12 +26,11 @@ extensions = [
         [
             "aiohttp/_http_parser.c",
             "aiohttp/_find_header.c",
-            "vendor/llhttp/build/c/llhttp.c",
-            "vendor/llhttp/src/native/api.c",
-            "vendor/llhttp/src/native/http.c",
         ],
         define_macros=[("LLHTTP_STRICT_MODE", 0)],
-        include_dirs=["vendor/llhttp/build"],
+        include_dirs=["@llhttpDev@/include"],
+        library_dirs=["@llhttpLib@/lib"],
+        libraries=["llhttp"],
     ),
     Extension("aiohttp._helpers", ["aiohttp/_helpers.c"]),
     Extension("aiohttp._http_writer", ["aiohttp/_http_writer.c"]),