diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py
index c8e1352865..b38c151b3d 100644
--- a/bitbake/lib/bb/command.py
+++ b/bitbake/lib/bb/command.py
@@ -414,7 +414,11 @@ class CommandsSync:
     getAllAppends.readonly = True
 
     def findProviders(self, command, params):
-        return command.cooker.findProviders()
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.findProviders(mc)
     findProviders.readonly = True
 
     def findBestProvider(self, command, params):