diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/GeneralHighlightingPass.java b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/GeneralHighlightingPass.java
index 0a3f4c394c8d..89f0839ea62e 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/GeneralHighlightingPass.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/GeneralHighlightingPass.java
@@ -46,6 +46,7 @@ import com.intellij.openapi.fileTypes.SyntaxHighlighter;
 import com.intellij.openapi.fileTypes.SyntaxHighlighterFactory;
 import com.intellij.openapi.progress.ProcessCanceledException;
 import com.intellij.openapi.progress.ProgressIndicator;
+import com.intellij.openapi.progress.ProgressManager;
 import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.DumbService;
 import com.intellij.openapi.project.Project;
@@ -498,6 +499,7 @@ public class GeneralHighlightingPass extends ProgressableTextEditorHighlightingP
     final TextAttributes defaultAttrs = myGlobalScheme.getAttributes(HighlighterColors.TEXT);
 
     for (Trinity<IElementType, PsiLanguageInjectionHost, TextRange> token : tokens) {
+      ProgressManager.checkCanceled();
       IElementType tokenType = token.getFirst();
       PsiLanguageInjectionHost injectionHost = token.getSecond();
       TextRange textRange = token.getThird();
diff --git a/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedLanguageUtil.java b/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedLanguageUtil.java
index e9c855f6c2fb..75a24bfe3c2c 100644
--- a/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedLanguageUtil.java
+++ b/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedLanguageUtil.java
@@ -304,11 +304,13 @@ public class InjectedLanguageUtil {
     PsiFile hostPsiFile = documentManager.getPsiFile(hostDocument);
     assert hostPsiFile != null;
     for (RangeMarker rangeMarker : injected) {
+      ProgressManager.checkCanceled();
       PsiElement element = rangeMarker.isValid() ? hostPsiFile.findElementAt(rangeMarker.getStartOffset()) : null;
       if (element == null) {
         injected.remove(rangeMarker);
         continue;
       }
+      ProgressManager.checkCanceled();
       // it is here reparse happens and old file contents replaced
       enumerate(element, hostPsiFile, new PsiLanguageInjectionHost.InjectedPsiVisitor() {
         public void visit(@NotNull PsiFile injectedPsi, @NotNull List<PsiLanguageInjectionHost.Shred> places) {