diff --git a/src/main/java/me/topchetoeu/jscript/compilation/CompileResult.java b/src/main/java/me/topchetoeu/jscript/compilation/CompileResult.java
index 367ed38..e2040aa 100644
--- a/src/main/java/me/topchetoeu/jscript/compilation/CompileResult.java
+++ b/src/main/java/me/topchetoeu/jscript/compilation/CompileResult.java
@@ -15,7 +15,9 @@ import me.topchetoeu.jscript.common.environment.Key;
 import me.topchetoeu.jscript.common.mapping.FunctionMap;
 import me.topchetoeu.jscript.common.mapping.FunctionMap.FunctionMapBuilder;
 import me.topchetoeu.jscript.common.parsing.Location;
+import me.topchetoeu.jscript.compilation.control.TryNode;
 import me.topchetoeu.jscript.compilation.scope.FunctionScope;
+import me.topchetoeu.jscript.compilation.scope.Variable;
 
 public final class CompileResult {
 	public static final Key<Void> DEBUG_LOG = new Key<>();
@@ -28,6 +30,7 @@ public final class CompileResult {
 	public final Environment env;
 	public int length;
 	public final FunctionScope scope;
+	public final Map<TryNode, Variable> catchBindings = new HashMap<>();
 
 	public int temp() {
 		instructions.add(null);
diff --git a/src/main/java/me/topchetoeu/jscript/compilation/control/TryNode.java b/src/main/java/me/topchetoeu/jscript/compilation/control/TryNode.java
index 2cc2419..1bf1721 100644
--- a/src/main/java/me/topchetoeu/jscript/compilation/control/TryNode.java
+++ b/src/main/java/me/topchetoeu/jscript/compilation/control/TryNode.java
@@ -27,7 +27,14 @@ public class TryNode extends Node {
 	}
 	@Override public void compileFunctions(CompileResult target) {
 		tryBody.compileFunctions(target);
-		if (catchBody != null) catchBody.compileFunctions(target);
+		if (catchBody != null) {
+			if (captureName != null) {
+				var index = target.scope.defineCatch(captureName);
+				target.catchBindings.put(this, index);
+			}
+			catchBody.compileFunctions(target);
+			if (captureName != null) target.scope.undefineCatch();
+		}
 		if (finallyBody != null) finallyBody.compileFunctions(target);
 	}
 	@Override public void compile(CompileResult target, boolean pollute, BreakpointType bpt) {
@@ -45,11 +52,10 @@ public class TryNode extends Node {
 			catchStart = target.size() - start;
 
 			if (captureName != null) {
-				var catchVar = target.scope.defineCatch(captureName);
+				var catchVar = target.catchBindings.get(this);
 				target.add(Instruction.loadError()).setLocation(catchBody.loc());
 				target.add(catchVar.index().toSet(false)).setLocation(catchBody.loc());
 				catchBody.compile(target, false);
-				target.scope.undefineCatch();
 			}
 			else catchBody.compile(target, false);