diff --git a/test/pqclean.py b/test/pqclean.py
index d11b1bce..12e1d61d 100644
--- a/test/pqclean.py
+++ b/test/pqclean.py
@@ -70,7 +70,7 @@ class Implementation:
     def __init__(self, scheme, name):
         self.scheme = scheme
         self.name = name
-        
+
     def metadata(self):
         for i in self.scheme.metadata()['implementations']:
             if i['name'] == self.name:
@@ -79,9 +79,6 @@ class Implementation:
     def path(self, base='..') -> str:
         return os.path.join(self.scheme.path(), self.name)
 
-    def namespace_prefix(self):
-        return 'PQCLEAN_{}_{}_'.format(self.scheme.name.upper(), self.name.upper()).replace('-', '')
-
     def libname(self) -> str:
         if os.name == 'nt':
             return "lib{}_{}.lib".format(self.scheme.name, self.name)