diff --git a/scripts/check-remote-protocol.py b/scripts/check-remote-protocol.py
index cf9e3f84a1..e28fb80cdd 100644
--- a/scripts/check-remote-protocol.py
+++ b/scripts/check-remote-protocol.py
@@ -32,9 +32,8 @@ import subprocess
 import sys
 
 cc = sys.argv[1]
-objext = sys.argv[2]
-proto_lo = sys.argv[3]
-expected = sys.argv[4]
+proto_lo = sys.argv[2]
+expected = sys.argv[3]
 
 proto_lo = proto_lo.replace("/", "/.libs/")
 
diff --git a/src/Makefile.am b/src/Makefile.am
index b893f4179e..f8237144a3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -228,25 +228,25 @@ $(srcdir)/remote_protocol-struct \
 	$(srcdir)/lxc_protocol-struct: \
 		$(srcdir)/%-struct: remote/libvirt_driver_remote_la-%.lo
 	$(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(CHECK_REMOTE_PROTOCOL) \
-		"$(CC)" "$(OBJEXT)" $< $(@)s
+		"$(CC)" $< $(@)s
 $(srcdir)/virnetprotocol-struct $(srcdir)/virkeepaliveprotocol-struct: \
 		$(srcdir)/%-struct: rpc/libvirt_net_rpc_la-%.lo
 	$(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(CHECK_REMOTE_PROTOCOL) \
-		"$(CC)" "$(OBJEXT)" $< $(@)s
+		"$(CC)" $< $(@)s
 if WITH_LXC
 $(srcdir)/lxc_monitor_protocol-struct: \
 		$(srcdir)/%-struct: lxc/libvirt_driver_lxc_impl_la-%.lo
 	$(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(CHECK_REMOTE_PROTOCOL) \
-		"$(CC)" "$(OBJEXT)" $< $(@)s
+		"$(CC)" $< $(@)s
 endif WITH_LXC
 $(srcdir)/lock_protocol-struct: \
 		$(srcdir)/%-struct: locking/lockd_la-%.lo
 	$(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(CHECK_REMOTE_PROTOCOL) \
-		"$(CC)" "$(OBJEXT)" $< $(@)s
+		"$(CC)" $< $(@)s
 $(srcdir)/admin_protocol-struct: \
 		$(srcdir)/%-struct: admin/libvirt_admin_la-%.lo
 	$(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(CHECK_REMOTE_PROTOCOL) \
-		"$(CC)" "$(OBJEXT)" $< $(@)s
+		"$(CC)" $< $(@)s
 
 else !WITH_REMOTE
 # The $(PROTOCOL_STRUCTS) files must live in git, because they cannot be