diff --git a/scd/1.johchow.scd b/scd/1.johchow.scd
index ec4f6d7..4ff5681 100644
--- a/scd/1.johchow.scd
+++ b/scd/1.johchow.scd
@@ -4,6 +4,12 @@
 	inspired by frequency modulation synthesis
 	and innovations in computer music by John Chowning.
 
+	!!! - IMPORTANT - !!!
+
+	YOU NEED PortedPlugins (https://github.com/madskjeldgaard/portedplugins)
+	and DEIND UGens from sc3-plugins (https://github.com/supercollider/sc3-plugins)
+	for this code to work in your SuperColider.
+
 	copyright by Luka Prinčič <luka@lukaprincic.si>
 
 	published under the conditions of Peer Production Licence
diff --git a/scd/2.oceamelt.scd b/scd/2.oceamelt.scd
index 1dff5e0..8145ad9 100644
--- a/scd/2.oceamelt.scd
+++ b/scd/2.oceamelt.scd
@@ -3,6 +3,11 @@
 	oceamelt.
 
 
+	!!! - IMPORTANT - !!!
+
+	YOU NEED DEIND UGens from sc3-plugins
+	(https://github.com/supercollider/sc3-plugins)
+	for this code to work in your SuperColider.
 
 */
 (
diff --git a/scd/3.carbdiox.scd b/scd/3.carbdiox.scd
index 99d6e0b..fd6ec72 100644
--- a/scd/3.carbdiox.scd
+++ b/scd/3.carbdiox.scd
@@ -3,6 +3,12 @@
 
 		carbdiox.
 
+		!!! - IMPORTANT - !!!
+
+		YOU NEED PortedPlugins (https://github.com/madskjeldgaard/portedplugins)
+		and DEIND UGens from sc3-plugins (https://github.com/supercollider/sc3-plugins)
+		for this code to work in your SuperColider.
+
 */
 
 s.waitForBoot({