diff --git a/core/src/main/java/org/teavm/backend/javascript/rendering/AstVisitor.java b/core/src/main/java/org/teavm/backend/javascript/rendering/AstVisitor.java
index b34bfcac1..54232cddc 100644
--- a/core/src/main/java/org/teavm/backend/javascript/rendering/AstVisitor.java
+++ b/core/src/main/java/org/teavm/backend/javascript/rendering/AstVisitor.java
@@ -29,6 +29,7 @@ import org.mozilla.javascript.ast.ConditionalExpression;
 import org.mozilla.javascript.ast.ContinueStatement;
 import org.mozilla.javascript.ast.DoLoop;
 import org.mozilla.javascript.ast.ElementGet;
+import org.mozilla.javascript.ast.EmptyExpression;
 import org.mozilla.javascript.ast.EmptyStatement;
 import org.mozilla.javascript.ast.ExpressionStatement;
 import org.mozilla.javascript.ast.ForInLoop;
@@ -133,7 +134,11 @@ public class AstVisitor {
                 visitParenthesized((ParenthesizedExpression) node);
                 break;
             case Token.EMPTY:
-                visitEmpty((EmptyStatement) node);
+                if (node instanceof EmptyStatement) {
+                    visitEmpty((EmptyStatement) node);
+                } else {
+                    visitEmpty((EmptyExpression) node);
+                }
                 break;
             case Token.EXPR_VOID:
             case Token.EXPR_RESULT:
@@ -377,6 +382,9 @@ public class AstVisitor {
     protected void visitEmpty(EmptyStatement node) {
     }
 
+    protected void visitEmpty(EmptyExpression node) {
+    }
+
     protected void visitName(Name node) {
     }