diff --git a/src/java/me/topchetoeu/jscript/compilation/scope/FunctionScope.java b/src/java/me/topchetoeu/jscript/compilation/scope/FunctionScope.java
index 3e70aa5..d20a277 100644
--- a/src/java/me/topchetoeu/jscript/compilation/scope/FunctionScope.java
+++ b/src/java/me/topchetoeu/jscript/compilation/scope/FunctionScope.java
@@ -27,19 +27,17 @@ public class FunctionScope extends Scope {
         else if (parent == null) throw new RuntimeException("Strict variables may be defined only in local scopes");
         else return parent.defineStrict(name, readonly, loc);
     }
-    public VariableDescriptor defineParam(String name, Location loc) {
-        return specials.add(name, false);
+    public VariableDescriptor defineParam(String name, boolean readonly, Location loc) {
+        return specials.add(name, readonly);
     }
     public boolean hasArg(String name) {
         return specials.has(name);
     }
 
-    public VariableDescriptor get(String name, boolean capture, boolean skipSelf) {
-        if (!skipSelf) {
-            if (specials.has(name)) return specials.get(name);
-            if (locals.has(name)) return locals.get(name);
-            if (captures.has(name)) return captures.get(name);
-        }
+    @Override public VariableDescriptor get(String name, boolean capture) {
+        if (specials.has(name)) return specials.get(name);
+        if (locals.has(name)) return locals.get(name);
+        if (captures.has(name)) return captures.get(name);
 
         var parentVar = parent.get(name, true);
         if (parentVar == null) return null;
@@ -51,10 +49,6 @@ public class FunctionScope extends Scope {
         return childVar;
     }
 
-    @Override public VariableDescriptor get(String name, boolean capture) {
-        return get(name, capture, false);
-    }
-
     @Override public boolean has(String name) {
         if (specials.has(name)) return true;
         if (locals.has(name)) return true;
@@ -83,7 +77,7 @@ public class FunctionScope extends Scope {
     }
 
     public int offset() {
-        return captures.size() + locals.size();
+        return specials.size() + locals.size();
     }
 
     public int[] getCaptureIndices() {
@@ -93,6 +87,7 @@ public class FunctionScope extends Scope {
         for (var el : captures) {
             assert childToParent.containsKey(el);
             res[i] = childToParent.get(el).index();
+            i++;
         }
 
         return res;
diff --git a/src/java/me/topchetoeu/jscript/compilation/scope/LocalScope.java b/src/java/me/topchetoeu/jscript/compilation/scope/LocalScope.java
index c348168..71599f7 100644
--- a/src/java/me/topchetoeu/jscript/compilation/scope/LocalScope.java
+++ b/src/java/me/topchetoeu/jscript/compilation/scope/LocalScope.java
@@ -3,7 +3,10 @@ package me.topchetoeu.jscript.compilation.scope;
 import me.topchetoeu.jscript.common.parsing.Location;
 
 public final class LocalScope extends Scope {
-    private final VariableList locals = new VariableList();
+    private final VariableList locals = new VariableList(() -> {
+        if (parent != null) return parent.offset();
+        else return 0;
+    });
 
     @Override public int offset() {
         if (parent != null) return parent.offset() + locals.size();
diff --git a/src/java/me/topchetoeu/jscript/compilation/scope/VariableList.java b/src/java/me/topchetoeu/jscript/compilation/scope/VariableList.java
index dc583af..036c313 100644
--- a/src/java/me/topchetoeu/jscript/compilation/scope/VariableList.java
+++ b/src/java/me/topchetoeu/jscript/compilation/scope/VariableList.java
@@ -38,13 +38,11 @@ public final class VariableList implements Iterable<VariableDescriptor> {
         public ListVar freeze() {
             if (frozen) return this;
             this.frozen = true;
-
+            this.next = null;
             if (prev == null) return this;
-            assert prev.frozen;
 
             this.index = prev.index + 1;
             this.next = null;
-            this.prev = null;
 
             return this;
         }