diff --git a/psycopg/psycopg/pq/_pq_ctypes.py b/psycopg/psycopg/pq/_pq_ctypes.py
index 9ca1d129..02929ab6 100644
--- a/psycopg/psycopg/pq/_pq_ctypes.py
+++ b/psycopg/psycopg/pq/_pq_ctypes.py
@@ -11,14 +11,10 @@ from ctypes import Structure, CFUNCTYPE, POINTER
 from ctypes import c_char, c_char_p, c_int, c_size_t, c_ubyte, c_uint, c_void_p
 from typing import List, Optional, Tuple
 
-from .misc import find_libpq_full_path
 from ..errors import NotSupportedError
 
-libname = find_libpq_full_path()
-if not libname:
-    raise ImportError("libpq library not found")
 
-pq = ctypes.cdll.LoadLibrary(libname)
+pq = ctypes.cdll.LoadLibrary("@libpq@")
 
 
 class FILE(Structure):
@@ -28,9 +24,7 @@ class FILE(Structure):
 FILE_ptr = POINTER(FILE)
 
 if sys.platform == "linux":
-    libcname = ctypes.util.find_library("c")
-    assert libcname
-    libc = ctypes.cdll.LoadLibrary(libcname)
+    libc = ctypes.cdll.LoadLibrary("@libc@")
 
     fdopen = libc.fdopen
     fdopen.argtypes = (c_int, c_char_p)
diff --git a/tests/fix_pq.py b/tests/fix_pq.py
index 917dfc91..505f2d65 100644
--- a/tests/fix_pq.py
+++ b/tests/fix_pq.py
@@ -47,18 +47,7 @@ def pytest_runtest_setup(item):
 @pytest.fixture
 def libpq():
     """Return a ctypes wrapper to access the libpq."""
-    try:
-        from psycopg.pq.misc import find_libpq_full_path
-
-        # Not available when testing the binary package
-        libname = find_libpq_full_path()
-        assert libname, "libpq libname not found"
-        return ctypes.cdll.LoadLibrary(libname)
-    except Exception as e:
-        if pq.__impl__ == "binary":
-            pytest.skip(f"can't load libpq for testing: {e}")
-        else:
-            raise
+    return ctypes.cdll.LoadLibrary("@libpq@")
 
 
 @pytest.fixture