diff --git a/src/org/rascalmpl/library/util/Validator.rsc b/src/org/rascalmpl/library/util/Validator.rsc
index 3b561c2a36f..db2f1215507 100644
--- a/src/org/rascalmpl/library/util/Validator.rsc
+++ b/src/org/rascalmpl/library/util/Validator.rsc
@@ -31,7 +31,7 @@ private data RuntimeException = none();
 &T validate(type[&T] expected, node v, list[value] path = [], bool relaxed=false) {
     Symbol lookup(str name, [*_,label(key, sym),*_]) = sym;
     default Symbol lookup(str _, list[Symbol] _) = \value();
-    Symbol unlabe(label(_, Symbol sym)) = sym;
+    Symbol unlabel(label(_, Symbol sym)) = sym;
     default Symbol unlabel(Symbol sym)  = sym;
 
     if (expected.symbol == \node()) {