diff --git a/json/src/com/jetbrains/jsonSchema/impl/JsonBySchemaObjectAnnotator.java b/json/src/com/jetbrains/jsonSchema/impl/JsonBySchemaObjectAnnotator.java
index 865c6efdefbb..44f8ace10af8 100644
--- a/json/src/com/jetbrains/jsonSchema/impl/JsonBySchemaObjectAnnotator.java
+++ b/json/src/com/jetbrains/jsonSchema/impl/JsonBySchemaObjectAnnotator.java
@@ -188,39 +188,36 @@ class JsonBySchemaObjectAnnotator implements Annotator {
       final JsonSchemaType type = getType(value);
       if (type == null) {
         typeError(value);
-        return;
+      } else {
+        JsonSchemaType schemaType = matchSchemaType(schema, type);
+        if (schemaType == null && schema.hasSpecifiedType()) {
+          typeError(value);
+        }
+        else if (JsonSchemaType._boolean.equals(type)) {
+          checkForEnum(value, schema);
+        }
+        else if (JsonSchemaType._number.equals(type) || JsonSchemaType._integer.equals(type)) {
+          checkNumber(value, schema, schemaType);
+          checkForEnum(value, schema);
+        }
+        else if (JsonSchemaType._string.equals(type)) {
+          checkString(value, schema);
+          checkForEnum(value, schema);
+        }
+        else if (JsonSchemaType._array.equals(type)) {
+          checkArray(value, schema);
+          checkForEnum(value, schema);
+        }
+        else if (JsonSchemaType._object.equals(type)) {
+          checkObject(value, schema, validatedProperties);
+          checkForEnum(value, schema);
+        }
       }
-      JsonSchemaType schemaType = matchSchemaType(schema, type);
-      if (schemaType == null && schema.hasSpecifiedType()) {
-        typeError(value);
-        return;
-      }
-      if (JsonSchemaType._boolean.equals(type)) {
-        checkForEnum(value, schema);
-        return;
-      }
-      if (JsonSchemaType._number.equals(type) || JsonSchemaType._integer.equals(type)) {
-        checkNumber(value, schema, schemaType);
-        checkForEnum(value, schema);
-        return;
-      }
-      if (JsonSchemaType._string.equals(type)) {
-        checkString(value, schema);
-        checkForEnum(value, schema);
-        return;
-      }
-      if (JsonSchemaType._array.equals(type)) {
-        checkArray(value, schema);
-        checkForEnum(value, schema);
-        return;
-      }
-      if (JsonSchemaType._object.equals(type)) {
-        checkObject(value, schema, validatedProperties);
-        checkForEnum(value, schema);
-        return;
-      }
-      if (JsonSchemaType._null.equals(type)) {
-        return;
+
+      if (schema.getNot() != null) {
+        final BySchemaChecker checker = new BySchemaChecker();
+        checker.checkByScheme(value, schema.getNot(), new HashSet<>());
+        if (checker.isCorrect()) error("Validates against 'not' schema", value);
       }
     }
 
diff --git a/json/tests/test/com/jetbrains/jsonSchema/JsonSchemaHighlightingTest.java b/json/tests/test/com/jetbrains/jsonSchema/JsonSchemaHighlightingTest.java
index 15d11be2fadc..5cabd3d5ca31 100644
--- a/json/tests/test/com/jetbrains/jsonSchema/JsonSchemaHighlightingTest.java
+++ b/json/tests/test/com/jetbrains/jsonSchema/JsonSchemaHighlightingTest.java
@@ -439,6 +439,25 @@ public class JsonSchemaHighlightingTest extends DaemonAnalyzerTestCase {
     testImpl(schema, text);
   }
 
+  public void testNotSchema() throws Exception {
+    final String schema = "{\"properties\": {\n" +
+                          "    \"not_type\": { \"not\": { \"type\": \"string\" } }\n" +
+                          "  }}";
+    testImpl(schema, "{\"not_type\": <warning descr=\"Validates against 'not' schema\">\"wrong\"</warning>}");
+  }
+
+  public void testNotSchemaCombinedWithNormal() throws Exception {
+    final String schema = "{\"properties\": {\n" +
+                          "    \"not_type\": {\n" +
+                          "      \"pattern\": \"^[a-z]*[0-5]*$\",\n" +
+                          "      \"not\": { \"pattern\": \"^[a-z]{1}[0-5]$\" }\n" +
+                          "    }\n" +
+                          "  }}";
+    testImpl(schema, "{\"not_type\": \"va4\"}");
+    testImpl(schema, "{\"not_type\": <warning descr=\"Validates against 'not' schema\">\"a4\"</warning>}");
+    testImpl(schema, "{\"not_type\": <warning descr=\"String is violating the pattern: '^[a-z]*[0-5]*$'\">\"4a4\"</warning>}");
+  }
+
   public static String rootObjectRedefinedSchema() {
     return "{\n" +
            "  \"$schema\": \"http://json-schema.org/draft-04/schema#\",\n" +