diff --git a/spellchecker/src/com/intellij/spellchecker/tokenizer/HtmlSpellcheckingStrategy.java b/spellchecker/src/com/intellij/spellchecker/tokenizer/HtmlSpellcheckingStrategy.java
index 7c7c44c4da52..0fea8e12f7e1 100644
--- a/spellchecker/src/com/intellij/spellchecker/tokenizer/HtmlSpellcheckingStrategy.java
+++ b/spellchecker/src/com/intellij/spellchecker/tokenizer/HtmlSpellcheckingStrategy.java
@@ -15,11 +15,14 @@
  */
 package com.intellij.spellchecker.tokenizer;
 
+import com.intellij.codeInsight.completion.HtmlCompletionContributor;
 import com.intellij.psi.ElementManipulators;
 import com.intellij.psi.PsiComment;
 import com.intellij.psi.PsiElement;
+import com.intellij.psi.xml.XmlAttribute;
 import com.intellij.psi.xml.XmlAttributeValue;
 import com.intellij.util.io.URLUtil;
+import com.intellij.xml.XmlAttributeDescriptor;
 import org.jetbrains.annotations.NotNull;
 
 public class HtmlSpellcheckingStrategy extends SpellcheckingStrategy {
@@ -31,6 +34,18 @@ public class HtmlSpellcheckingStrategy extends SpellcheckingStrategy {
       if (URLUtil.isDataUri(ElementManipulators.getValueText(element))) {
         return EMPTY_TOKENIZER;
       }
+      PsiElement parent = element.getParent();
+      if (parent instanceof XmlAttribute) {
+        if (HtmlCompletionContributor.hasHtmlAttributesCompletion(element) &&
+            HtmlCompletionContributor.addSpecificCompletions((XmlAttribute)parent).length > 0) {
+          return EMPTY_TOKENIZER;
+        }
+        XmlAttributeDescriptor descriptor = ((XmlAttribute)parent).getDescriptor();
+        if (descriptor != null && (descriptor.isEnumerated() || descriptor.isFixed())) {
+          return EMPTY_TOKENIZER;
+        }
+      }
+
       return myXmlAttributeTokenizer;
     }
     return EMPTY_TOKENIZER;
diff --git a/spellchecker/testData/inspection/xmlWithMistakes/attributes.html b/spellchecker/testData/inspection/xmlWithMistakes/attributes.html
new file mode 100644
index 000000000000..966922f75e38
--- /dev/null
+++ b/spellchecker/testData/inspection/xmlWithMistakes/attributes.html
@@ -0,0 +1,5 @@
+<div>
+  <a target="_blank" rel="nofollow"></a>
+  <a rel="noopener"></a>
+  <ul role="tablist"></ul>
+</div>
\ No newline at end of file
diff --git a/spellchecker/testSrc/com/intellij/spellchecker/inspection/XmlWithMistakesInspectionTest.java b/spellchecker/testSrc/com/intellij/spellchecker/inspection/XmlWithMistakesInspectionTest.java
index 18f039b21533..096a18e8e1d4 100644
--- a/spellchecker/testSrc/com/intellij/spellchecker/inspection/XmlWithMistakesInspectionTest.java
+++ b/spellchecker/testSrc/com/intellij/spellchecker/inspection/XmlWithMistakesInspectionTest.java
@@ -31,4 +31,8 @@ public class XmlWithMistakesInspectionTest extends SpellcheckerInspectionTestCas
   public void testCharacterData() {
     doTest("test.html");
   }
+
+  public void testKnownAttributes() {
+    doTest("attributes.html");
+  }
 }
diff --git a/xml/impl/src/com/intellij/codeInsight/completion/HtmlCompletionContributor.java b/xml/impl/src/com/intellij/codeInsight/completion/HtmlCompletionContributor.java
index 043ecefa020a..ece0368ea546 100644
--- a/xml/impl/src/com/intellij/codeInsight/completion/HtmlCompletionContributor.java
+++ b/xml/impl/src/com/intellij/codeInsight/completion/HtmlCompletionContributor.java
@@ -46,6 +46,18 @@ import static com.intellij.html.impl.util.MicrodataUtil.*;
 import static com.intellij.patterns.PlatformPatterns.psiElement;
 
 public class HtmlCompletionContributor extends CompletionContributor implements DumbAware {
+
+  public static final String[] TARGET = {"_blank", "_top", "_self", "_parent"};
+  public static final String[] ENCTYPE = {"multipart/form-data", "application/x-www-form-urlencoded"};
+  public static final String[] REL = {"alternate", "author", "bookmark", "help", "icon", "license", "next", "nofollow",
+    "noreferrer", "noopener", "prefetch", "prev", "search", "stylesheet", "tag", "start", "contents", "index",
+    "glossary", "copyright", "chapter", "section", "subsection", "appendix", "script", "import",
+    "apple-touch-icon", "apple-touch-icon-precomposed", "apple-touch-startup-image"};
+  public static final String[] MEDIA = {"all", "braille", "embossed", "handheld", "print", "projection", "screen", "speech", "tty", "tv"};
+  public static final String[] LANGUAGE =
+    {"JavaScript", "VBScript", "JScript", "JavaScript1.2", "JavaScript1.3", "JavaScript1.4", "JavaScript1.5"};
+  public static final String[] TYPE = {"text/css", "text/html", "text/plain", "text/xml"};
+
   public HtmlCompletionContributor() {
     extend(CompletionType.BASIC, psiElement().inside(XmlPatterns.xmlAttributeValue()), new CompletionProvider<CompletionParameters>() {
       @Override
@@ -76,7 +88,7 @@ public class HtmlCompletionContributor extends CompletionContributor implements
 
   @NotNull
   @NonNls
-  protected static String[] addSpecificCompletions(final XmlAttribute attribute) {
+  public static String[] addSpecificCompletions(final XmlAttribute attribute) {
     @NonNls String name = attribute.getName();
     final XmlTag tag = attribute.getParent();
     if (tag == null) return ArrayUtil.EMPTY_STRING_ARRAY;
@@ -91,25 +103,22 @@ public class HtmlCompletionContributor extends CompletionContributor implements
     if (XmlUtil.XHTML_URI.equals(namespace) || XmlUtil.HTML_URI.equals(namespace)) {
 
       if ("target".equals(name)) {
-        return new String[]{"_blank", "_top", "_self", "_parent"};
+        return TARGET;
       }
       else if ("enctype".equals(name)) {
-        return new String[]{"multipart/form-data", "application/x-www-form-urlencoded"};
+        return ENCTYPE;
       }
       else if ("rel".equals(name) || "rev".equals(name)) {
-        return new String[]{"alternate", "author", "bookmark", "help", "icon", "license", "next", "nofollow",
-          "noreferrer", "noopener", "prefetch", "prev", "search", "stylesheet", "tag", "start", "contents", "index",
-          "glossary", "copyright", "chapter", "section", "subsection", "appendix", "script", "import",
-          "apple-touch-icon", "apple-touch-icon-precomposed", "apple-touch-startup-image"};
+        return REL;
       }
       else if ("media".equals(name)) {
-        return new String[]{ "all", "braille", "embossed", "handheld", "print", "projection", "screen", "speech", "tty", "tv" };
+        return MEDIA;
       }
       else if ("language".equals(name)) {
-        return new String[]{"JavaScript", "VBScript", "JScript", "JavaScript1.2", "JavaScript1.3", "JavaScript1.4", "JavaScript1.5"};
+        return LANGUAGE;
       }
       else if ("type".equals(name) && "link".equals(tagName)) {
-        return new String[]{"text/css", "text/html", "text/plain", "text/xml"};
+        return TYPE;
       }
       else if ("http-equiv".equals(name) && "meta".equals(tagName)) {
         return HtmlUtil.RFC2616_HEADERS;