diff --git a/lang/lexer.nex b/lang/lexer.nex
index 967285c3..7eb1368d 100644
--- a/lang/lexer.nex
+++ b/lang/lexer.nex
@@ -384,8 +384,12 @@
 			yylex.pos(lval) // our pos
 			s := yylex.Text()
 			lp := yylex.cast()
+			e := ErrLexerUnrecognized
+			if s == "\r" { // windows!
+				e = ErrLexerUnrecognizedCR
+			}
 			lp.lexerErr = &LexParseErr{
-				Err: ErrLexerUnrecognized,
+				Err: e,
 				Str: s,
 				Row: yylex.Line(),
 				Col: yylex.Column(),
diff --git a/lang/lexparse.go b/lang/lexparse.go
index 1541796d..8bc86c15 100644
--- a/lang/lexparse.go
+++ b/lang/lexparse.go
@@ -46,6 +46,7 @@ const (
 // These constants represent the different possible lexer/parser errors.
 const (
 	ErrLexerUnrecognized      = interfaces.Error("unrecognized")
+	ErrLexerUnrecognizedCR    = interfaces.Error("unrecognized carriage return")
 	ErrLexerStringBadEscaping = interfaces.Error("string: bad escaping")
 	ErrLexerIntegerOverflow   = interfaces.Error("integer: overflow")
 	ErrLexerFloatOverflow     = interfaces.Error("float: overflow")