diff --git a/internal/common/literals.go b/internal/common/literals.go
index 54ce84c1334..6251e50476d 100644
--- a/internal/common/literals.go
+++ b/internal/common/literals.go
@@ -165,7 +165,12 @@ func ParseLiteral(l *Lexer, constOnly bool) Literal {
 		}
 		lit.Loc = loc
 		return lit
-
+	case '-':
+		l.ConsumeToken('-')
+		lit := l.ConsumeLiteral()
+		lit.Text = "-" + lit.Text
+		lit.Loc = loc
+		return lit
 	case '[':
 		l.ConsumeToken('[')
 		var list []Literal