diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index 3aabf61..30a24d2 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -42,7 +42,7 @@ def generate_command_decl(name, args, ret_type):
     return mcgen('''
 %(ret_type)s qmp_%(name)s(%(args)sError **errp);
 ''',
-                 ret_type=c_type(ret_type), name=c_var(name), args=arglist).strip()
+                 ret_type=c_type(ret_type), name=c_fun(name), args=arglist).strip()
 
 def gen_sync_call(name, args, ret_type, indent=0):
     ret = ""
@@ -59,7 +59,7 @@ def gen_sync_call(name, args, ret_type, indent=0):
 %(retval)sqmp_%(name)s(%(args)serrp);
 
 ''',
-                name=c_var(name), args=arglist, retval=retval).rstrip()
+                name=c_fun(name), args=arglist, retval=retval).rstrip()
     if ret_type:
         ret += "\n" + mcgen(''''
 if (!error_is_set(errp)) {
@@ -74,7 +74,7 @@ if (!error_is_set(errp)) {
 def gen_marshal_output_call(name, ret_type):
     if not ret_type:
         return ""
-    return "qmp_marshal_output_%s(retval, ret, errp);" % c_var(name)
+    return "qmp_marshal_output_%s(retval, ret, errp);" % c_fun(name)
 
 def gen_visitor_output_containers_decl(ret_type):
     ret = ""
@@ -198,16 +198,16 @@ static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s ret_in, QObject **ret_o
     qapi_dealloc_visitor_cleanup(md);
 }
 ''',
-                c_ret_type=c_type(ret_type), c_name=c_var(name),
+                c_ret_type=c_type(ret_type), c_name=c_fun(name),
                 visitor=type_visitor(ret_type))
 
     return ret
 
 def gen_marshal_input_decl(name, args, ret_type, middle_mode):
     if middle_mode:
-        return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_var(name)
+        return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_fun(name)
     else:
-        return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_var(name)
+        return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_fun(name)
 
 
 
@@ -298,7 +298,7 @@ def gen_registry(commands):
         registry += mcgen('''
 qmp_register_command("%(name)s", qmp_marshal_input_%(c_name)s);
 ''',
-                     name=cmd['command'], c_name=c_var(cmd['command']))
+                     name=cmd['command'], c_name=c_fun(cmd['command']))
     pop_indent()
     ret = mcgen('''
 static void qmp_init_marshal(void)
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index 727fb77..4a734f5 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -100,7 +100,7 @@ typedef enum %(name)s
     %(abbrev)s_%(value)s = %(i)d,
 ''',
                      abbrev=de_camel_case(name).upper(),
-                     value=c_var(value).upper(),
+                     value=c_fun(value).upper(),
                      i=i)
         i += 1
 
@@ -126,7 +126,7 @@ struct %(name)s
         %(c_type)s %(c_name)s;
 ''',
                      c_type=c_type(typeinfo[key]),
-                     c_name=c_var(key))
+                     c_name=c_fun(key))
 
     ret += mcgen('''
     };
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 54117d4..78c947c 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -129,9 +129,9 @@ void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **
         break;
 ''',
                 abbrev = de_camel_case(name).upper(),
-                enum = de_camel_case(key).upper(),
+                enum = c_fun(de_camel_case(key)).upper(),
                 c_type=members[key],
-                c_name=c_var(key))
+                c_name=c_fun(key))
 
     ret += mcgen('''
     default:
diff --git a/scripts/qapi.py b/scripts/qapi.py
index 6e05469..e062336 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -131,7 +131,10 @@ def camel_case(name):
     return new_name
 
 def c_var(name):
-    return '_'.join(name.split('-')).lstrip("*")
+    return name.replace('-', '_').lstrip("*")
+
+def c_fun(name):
+    return c_var(name).replace('.', '_')
 
 def c_list_type(name):
     return '%sList' % name
