 	# Macro: .RB
 	"macro-roman-bold":
 		name: "markup.roman-bold.roff"
-		begin: "^([.'][ \t]*RB)(?=[ \t]|$)"
+		begin: "^([.'][ \t]*RB)(?=[ \t\\\\]|$)"
 		end:   "(?<!\\\\)(?=\n)"
 		beginCaptures:
 			1: {name: "entity.function.name.roff"}

	# Macro: .B
	"macro-bold":
		name: "markup.bold.roff"
		begin: "^[.'][ \t]*B(?:$| +)"
		end:   "([^\n ]+ ?\n)"
		patterns: [{ include: "$self" }]
	

	# Macro: .IR
	"macro-italic-roman":
		name: "markup.italic-roman.roff"
		begin: "^([.'][ \t]*IR)(?=[ \t\\\\]|$)"
		end:   "(?<!\\\\)(?=\n)"
		beginCaptures:
			1: {name: "entity.function.name.roff"}
