diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 859b303128..20a11d289b 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -7743,7 +7743,7 @@ static int sip_show_objects(int fd, int argc, char *argv[])
 	return RESULT_SUCCESS;
 }
 /*! \brief  print_group: Print call group and pickup group ---*/
-static void  print_group(int fd, unsigned int group, int crlf) 
+static void  print_group(int fd, ast_group_t group, int crlf) 
 {
 	char buf[256];
 	ast_cli(fd, crlf ? "%s\r\n" : "%s\n", ast_print_group(buf, sizeof(buf), group) );
diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index ae2f7a7814..38b33ed2d3 100644
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -389,8 +389,8 @@ struct ast_channel {
 	/* A linked list for variables */
 	struct varshead varshead;
 
-	unsigned int callgroup;
-	unsigned int pickupgroup;
+	ast_group_t callgroup;
+	ast_group_t pickupgroup;
 
 	/*! channel flags of AST_FLAG_ type */
 	unsigned int flags;