diff --git a/plugins/devkit/devkit-core/src/dom/impl/ExtensionDomExtender.java b/plugins/devkit/devkit-core/src/dom/impl/ExtensionDomExtender.java
index 7fde1c40f2eb..3cf0305e2f4c 100644
--- a/plugins/devkit/devkit-core/src/dom/impl/ExtensionDomExtender.java
+++ b/plugins/devkit/devkit-core/src/dom/impl/ExtensionDomExtender.java
@@ -2,6 +2,7 @@
 package org.jetbrains.idea.devkit.dom.impl;
 
 import com.intellij.ide.plugins.PluginManagerCore;
+import com.intellij.openapi.progress.ProgressManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.text.StringUtil;
@@ -94,6 +95,7 @@ public class ExtensionDomExtender extends DomExtender<Extensions> {
   }
 
   private static void collectDependencies(final IdeaPlugin ideaPlugin, Set<IdeaPlugin> result, final MultiMap<String, IdeaPlugin> byId) {
+    ProgressManager.checkCanceled();
     if (!result.add(ideaPlugin)) {
       return;
     }
diff --git a/xml/dom-impl/src/com/intellij/util/xml/impl/DomImplUtil.java b/xml/dom-impl/src/com/intellij/util/xml/impl/DomImplUtil.java
index 55e8f3df6815..8866063b8226 100644
--- a/xml/dom-impl/src/com/intellij/util/xml/impl/DomImplUtil.java
+++ b/xml/dom-impl/src/com/intellij/util/xml/impl/DomImplUtil.java
@@ -16,6 +16,7 @@
 package com.intellij.util.xml.impl;
 
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.progress.ProgressManager;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiInvalidElementAccessException;
@@ -148,6 +149,7 @@ public class DomImplUtil {
     }
 
     return ContainerUtil.findAll(tags, childTag -> {
+      ProgressManager.checkCanceled();
       try {
         return isNameSuitable(name, childTag.getLocalName(), childTag.getName(), childTag.getNamespace(), file);
       }