diff --git a/pygccxml/parser/source_reader.py b/pygccxml/parser/source_reader.py
index b9d34afb..8aaaf6f4 100644
--- a/pygccxml/parser/source_reader.py
+++ b/pygccxml/parser/source_reader.py
@@ -123,8 +123,8 @@ def __create_command_line_castxml(self, source_file, xmlfile):
 
         # Platform specific options
         if platform.system() == 'Windows':
-
-            if "mingw" or "g++" or "gcc" in self.__config.compiler_path.lower():
+            compilers = ("mingw" or "g++" or "gcc")
+            if compilers in self.__config.compiler_path.lower():
                 # Look at the compiler path. This is a bad way
                 # to find out if we are using mingw; but it
                 # should probably work in most of the cases