diff --git a/cache/src/main/antlr4/net/runelite/cache/script/assembler/rs2asm.g4 b/cache/src/main/antlr4/net/runelite/cache/script/assembler/rs2asm.g4
index 150c6a7e16..7d0717dbcd 100644
--- a/cache/src/main/antlr4/net/runelite/cache/script/assembler/rs2asm.g4
+++ b/cache/src/main/antlr4/net/runelite/cache/script/assembler/rs2asm.g4
@@ -59,5 +59,6 @@ NEWLINE: '\n'+ ;
 INT: '-'? [0-9]+ ;
 QSTRING: '"' (~('"' | '\\' | '\r' | '\n') | '\\' ('"' | '\\'))* '"' ;
 INSTRUCTION: [a-z0-9_]+ ;
+COMMENT: ';' ~( '\r' | '\n' )* -> channel(HIDDEN) ;
 
 WS: (' ' | '\t')+ -> channel(HIDDEN) ;
\ No newline at end of file