diff -Nuar src/veusz-3.2/pyqtdistutils.py src/veusz-3.2.patched/pyqtdistutils.py
--- src/veusz-3.2/pyqtdistutils.py	2020-01-26 18:25:09.000000000 +0700
+++ src/veusz-3.2.patched/pyqtdistutils.py	2020-03-10 12:14:02.317395029 +0700
@@ -272,7 +272,7 @@
                 sip_exe,
                 '-c', self.build_temp
             ] + SIP_FLAGS.split() + [
-                '-I', os.path.join(sip_dir, 'PyQt5'),
+                '-I', sip_dir,
                 '-b', sbf,
                 source
             ]