diff -ru a/cmake/FindPyQt5.py b/cmake/FindPyQt5.py
--- a/cmake/FindPyQt5.py	2021-04-18 11:12:34.520409268 -0700
+++ b/cmake/FindPyQt5.py	2021-04-18 11:17:56.574204157 -0700
@@ -41,6 +41,7 @@
 
     cfg = sipconfig.Configuration()
     sip_dir = cfg.default_sip_dir
+    pyqt_prefix = os.sep.join(PyQt5.QtCore.__file__.split(os.sep)[0:-5])
     if sys.platform.startswith('freebsd'):
         py_version = str(sys.version_info.major) + str(sys.version_info.minor)
         sip_dir = sip_dir.replace(py_version, '')
@@ -51,12 +52,12 @@
         if os.path.exists(os.path.join(p, "QtCore", "QtCoremod.sip")):
             sip_dir = p
             break
-    else:
-        sys.exit(1)
+#    else:
+#        sys.exit(1)
     cfg = {
-        'pyqt_mod_dir': os.path.join(cfg.default_mod_dir, "PyQt5"),
-        'pyqt_sip_dir': sip_dir,
-        'pyqt_bin_dir': cfg.default_bin_dir,
+        'pyqt_mod_dir': os.path.dirname(PyQt5.QtCore.__file__),
+        'pyqt_sip_dir': os.path.join(pyqt_prefix,'share','sip','PyQt5'),
+        'pyqt_bin_dir': os.path.join(pyqt_prefix,'bin'),
     }
 else:  # Code for SIP v5
     from distutils.sysconfig import get_python_lib