diff --git a/mie/include/mie/const.h b/mie/include/mie/const.h
index 1b98d0e..581001d 100644
--- a/mie/include/mie/const.h
+++ b/mie/include/mie/const.h
@@ -14,6 +14,7 @@ struct mie_const {
 		double v_float;
 		char *v_str;
 		char *v_atom;
+		char *v_selector;
 	} c_v;
 };
 
diff --git a/mie/include/mie/msg.h b/mie/include/mie/msg.h
index 08a1a40..7401bfc 100644
--- a/mie/include/mie/msg.h
+++ b/mie/include/mie/msg.h
@@ -8,7 +8,7 @@ struct mie_msg {
 	struct mie_instr msg_base;
 	struct mie_type *msg_ret_type;
 	struct mie_value *msg_recipient;
-	const char *msg_name;
+	struct mie_value *msg_selector;
 	b_queue msg_args;
 };
 
diff --git a/mie/include/mie/type.h b/mie/include/mie/type.h
index e41291b..5207841 100644
--- a/mie/include/mie/type.h
+++ b/mie/include/mie/type.h
@@ -15,6 +15,7 @@ enum mie_type_id {
 	MIE_TYPE_CLASS = 0x06u,
 	MIE_TYPE_ARRAY = 0x08u,
 	MIE_TYPE_LABEL = 0x09u,
+	MIE_TYPE_SELECTOR = 0x0Au,
 	__MIE_TYPE_COUNT,
 };