diff --git a/examples/retro_term/retro_term.tscn b/examples/retro_term/retro_term.tscn
index 48d5245..7c58b24 100644
--- a/examples/retro_term/retro_term.tscn
+++ b/examples/retro_term/retro_term.tscn
@@ -14,6 +14,7 @@ the modified result to godotshaders.com.
 */
 
 shader_type canvas_item;
+uniform sampler2D SCREEN_TEXTURE : hint_screen_texture, filter_linear_mipmap;
 
 //*** IMPORTANT! ***/
 // - If you are using this shader to affect the node it is applied to set 'overlay' to false (unchecked in the instepctor).