diff --git a/java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java b/java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java
index 7e3f3b8e4667..388ef238b6e4 100644
--- a/java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java
+++ b/java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java
@@ -760,7 +760,8 @@ public class HighlightVisitorImpl extends JavaElementVisitor implements Highligh
     if (!myHolder.hasErrorResults() && method.isConstructor()) {
       myHolder.add(HighlightClassUtil.checkThingNotAllowedInInterface(method, aClass));
     }
-    if (!myHolder.hasErrorResults() && method.hasModifierProperty(PsiModifier.DEFAULT)) {
+    if (!myHolder.hasErrorResults() && (method.hasModifierProperty(PsiModifier.DEFAULT) || 
+                                        aClass != null && aClass.isInterface() && method.hasModifierProperty(PsiModifier.STATIC))) {
       myHolder.add(HighlightUtil.checkExtensionMethodsFeature(method, myLanguageLevel, myFile));
     }
 
diff --git a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/UnsupportedFeatures7.java b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/UnsupportedFeatures7.java
index d0d4dbc5324a..ac3eb042da5f 100644
--- a/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/UnsupportedFeatures7.java
+++ b/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/UnsupportedFeatures7.java
@@ -45,5 +45,6 @@ class UnsupportedFeatures {
 
   interface I {
     <error descr="Extension methods are not supported at this language level">default void m() { }</error>
+    <error descr="Extension methods are not supported at this language level">static void m() { }</error>
   }
 }