diff --git a/tools/vgchange.c b/tools/vgchange.c
index 2856b28c9..d24b17e65 100644
--- a/tools/vgchange.c
+++ b/tools/vgchange.c
@@ -590,7 +590,7 @@ int vgchange(struct cmd_context *cmd, int argc, char **argv)
 
 	if (arg_count(cmd, activate_ARG) &&
 	    (arg_count(cmd, monitor_ARG) || arg_count(cmd, poll_ARG))) {
-		if (!is_change_activating(arg_uint_value(cmd, activate_ARG, 0))) {
+		if (!is_change_activating((activation_change_t) arg_uint_value(cmd, activate_ARG, 0))) {
 			log_error("Only -ay* allowed with --monitor or --poll.");
 			return EINVALID_CMD_LINE;
 		}