diff --git a/src/asm/rgbasm.1 b/src/asm/rgbasm.1
index f0e2bdd1..d45ebd32 100644
--- a/src/asm/rgbasm.1
+++ b/src/asm/rgbasm.1
@@ -71,6 +71,8 @@ and
 .Xr rgbfix 1 ,
 .Xr rgblink 1 ,
 .Xr rgbds 7
+.Pp
+.Lk https://rednex.github.io/rgbds/asm.htm rgbasm assembly commands
 .Sh HISTORY
 .Nm
 was originally written by Carsten S\(/orensen as part of the ASMotor package,