1 files changed, 6 insertions, 2 deletions

diff --git a/checker/src/main/java/lv/enes/orang/checker/Checker.java b/checker/src/main/java/lv/enes/orang/checker/Checker.java
index 446d3f1..14604b8 100644
--- a/checker/src/main/java/lv/enes/orang/checker/Checker.java
+++ b/checker/src/main/java/lv/enes/orang/checker/Checker.java
@@ -58,7 +58,9 @@ public class Checker implements ExpressionVisitor<Void, CheckerException>, State
                 if (definitions.hasDefinition(def.name())) {
                         throw new CheckerException(STR."Top-level definition '\{def.name()}' redefined!");
                 }
-                return new Checker(ImmutableScope.of(definitions, def.name(), true));
+                var ch = new Checker(ImmutableScope.of(definitions, def.name(), true));
+                ch.visit(def.body());
+                return ch;
         }
 
         @Override
@@ -79,7 +81,9 @@ public class Checker implements ExpressionVisitor<Void, CheckerException>, State
         public Void visitFnExpression(FnExpression expr) throws CheckerException {
                 var args = new HashMap<String, Boolean>();
                 for (var arg : expr.args()) {
-                        args.put(arg.name, true);
+                        if (arg instanceof ArgSpec.Named(String name)) {
+                                args.put(name, true);
+                        }
                 }
                 new Checker(ImmutableScope.of(definitions, args)).visit(expr.body());
                 return null;