diff --git a/assembler-8608.lua b/assembler-8608.lua
index 2df1f29..f05b306 100644
--- a/assembler-8608.lua
+++ b/assembler-8608.lua
@@ -302,7 +302,7 @@ local function prefixCode(code, fn) -- fix strings, add line numbers
 		
 		if state=="code" then
 			if     c=="\r"                              then
-			elseif c=="\n" or c=="/"                    then
+			elseif c=="\n" or (c=="/" and cn~="/")      then
 				linenum = linenum+1
 				if not skipnl then out("\n") out(".ln "..linenum); out("\n"); end
 				lastnl = true