diff --git a/volatility3/framework/plugins/windows/malware/pebmasquerade.py b/volatility3/framework/plugins/windows/malware/pebmasquerade.py
index c2636820b..3d662789a 100644
--- a/volatility3/framework/plugins/windows/malware/pebmasquerade.py
+++ b/volatility3/framework/plugins/windows/malware/pebmasquerade.py
@@ -37,7 +37,7 @@ class PebMasquerade(interfaces.plugins.PluginInterface):
         ]
 
     @classmethod
-    def get_process_names(proc: interfaces.objects.ObjectInterface) -> Tuple[
+    def get_process_names(cls, proc: interfaces.objects.ObjectInterface) -> Tuple[
         Union[str, renderers.NotAvailableValue],
         Union[str, renderers.NotAvailableValue],
         Union[str, renderers.NotAvailableValue],