diff --git a/lib/c_glib/src/thrift/c_glib/protocol/thrift_multiplexed_protocol.c b/lib/c_glib/src/thrift/c_glib/protocol/thrift_multiplexed_protocol.c
index 5084ead..38e3fd4 100644
--- a/lib/c_glib/src/thrift/c_glib/protocol/thrift_multiplexed_protocol.c
+++ b/lib/c_glib/src/thrift/c_glib/protocol/thrift_multiplexed_protocol.c
@@ -40,7 +40,7 @@
 static GParamSpec *thrift_multiplexed_protocol_obj_properties[PROP_THRIFT_MULTIPLEXED_PROTOCOL_END] = { NULL, };
 
 gint32
-thrift_multiplexed_protocol_write_message_begin (ThriftMultiplexedProtocol *protocol,
+thrift_multiplexed_protocol_write_message_begin (ThriftProtocol *protocol,
     const gchar *name, const ThriftMessageType message_type,
     const gint32 seqid, GError **error)
 {
diff --git a/lib/c_glib/src/thrift/c_glib/transport/thrift_ssl_socket.c b/lib/c_glib/src/thrift/c_glib/transport/thrift_ssl_socket.c
index 0835891..3778302 100644
--- a/lib/c_glib/src/thrift/c_glib/transport/thrift_ssl_socket.c
+++ b/lib/c_glib/src/thrift/c_glib/transport/thrift_ssl_socket.c
@@ -159,7 +159,7 @@
  * @param error
  */
 static
-void thrift_ssl_socket_get_ssl_error(ThriftSSLSocket *socket, const guchar *error_msg, guint thrift_error_no, int ssl_error, GError **error)
+void thrift_ssl_socket_get_ssl_error(ThriftSSLSocket *socket, const gchar *error_msg, guint thrift_error_no, int ssl_error, GError **error)
 {
   unsigned long error_code;
   char buffer[1024];
@@ -207,7 +207,7 @@
  * @param error
  */
 static
-void thrift_ssl_socket_get_error(const guchar *error_msg, guint thrift_error_no, GError **error)
+void thrift_ssl_socket_get_error(const gchar *error_msg, guint thrift_error_no, GError **error)
 {
   unsigned long error_code;
   while ((error_code = ERR_get_error()) != 0) {