--- a/eric6/QScintilla/TypingCompleters/__init__.py	Tue Feb 23 17:31:36 2021 +0100
+++ b/eric6/QScintilla/TypingCompleters/__init__.py	Tue Feb 23 17:38:12 2021 +0100
@@ -18,7 +18,7 @@
     @return reference to the instanciated lexer object (QsciLexer)
     """
     try:
-        if language in ["Python", "Python3", "MicroPython"]:
+        if language in ["Python", "Python3", "MicroPython", "Cython"]:
             from .CompleterPython import CompleterPython
             return CompleterPython(editor, parent)
         elif language == "Ruby":