diff --git a/pyogg/library_loader.py b/pyogg/library_loader.py
index 711b1ba..cbb4914 100644
--- a/pyogg/library_loader.py
+++ b/pyogg/library_loader.py
@@ -101,8 +101,8 @@ def load(name, paths = None, tests = []):
 
     @staticmethod
     def load_other(name, paths = None, tests = []):
-        os.environ["PATH"] += ";" + ";".join((os.getcwd(), _here))
-        if paths: os.environ["PATH"] += ";" + ";".join(paths)
+        os.environ["PATH"] += os.pathsep + os.pathsep.join((os.getcwd(), _here))
+        if paths: os.environ["PATH"] += os.pathsep + os.pathsep.join(paths)
 
         for style in _other_styles:
             candidate = style.format(name)
@@ -117,8 +117,8 @@ def load_other(name, paths = None, tests = []):
 
     @staticmethod
     def load_windows(name, paths = None, tests = []):
-        os.environ["PATH"] += ";" + ";".join((os.getcwd(), _here))
-        if paths: os.environ["PATH"] += ";" + ";".join(paths)
+        os.environ["PATH"] += os.pathsep + os.pathsep.join((os.getcwd(), _here))
+        if paths: os.environ["PATH"] += os.pathsep + os.pathsep.join(paths)
         
         not_supported = [] # libraries that were found, but are not supported
         for style in _windows_styles: