diff --git a/bitbake/lib/bb/fetch2/osc.py b/bitbake/lib/bb/fetch2/osc.py
index a16a53e..5506829 100644
--- a/bitbake/lib/bb/fetch2/osc.py
+++ b/bitbake/lib/bb/fetch2/osc.py
@@ -57,7 +57,12 @@ class Osc(FetchMethod):
 
         basecmd = data.expand('${FETCHCMD_osc}', d)
 
-        proto = ud.parm.get('proto', 'ocs')
+        proto = ud.parm.get('protocol', 'ocs')
+
+        if ud.parm.get('proto') is not None:
+            logger.warn('Update %s recipe to use "protocol" not "proto".', d.getVar('PN', True))
+            # Use proto value for now
+            proto =  ud.parm.get('proto')
 
         options = []