diff --git a/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/compiler/ModelCompiler.java b/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/compiler/ModelCompiler.java
index ee77e0cf4..116d5b03f 100644
--- a/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/compiler/ModelCompiler.java
+++ b/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/compiler/ModelCompiler.java
@@ -151,7 +151,7 @@ private <T> TsBeanModel processBean(SymbolTable symbolTable, Model model, Map<Ty
             final TsType discriminantType = literals.isEmpty()
                     ? TsType.String
                     : new TsType.UnionType(literals);
-            properties.add(0, new TsPropertyModel(bean.getDiscriminantProperty(), discriminantType, settings.declarePropertiesAsReadOnly, null));
+            properties.add(0, new TsPropertyModel(bean.getDiscriminantProperty(), discriminantType, settings.declarePropertiesAsReadOnly, /*ownProperty*/ true, null));
         }
 
         return new TsBeanModel(bean.getOrigin(), TsBeanCategory.Data, isClass, beanIdentifier, typeParameters, parentType, bean.getTaggedUnionClasses(), interfaces, properties, null, null, bean.getComments());
@@ -202,7 +202,7 @@ private static boolean containsProperty(List<TsPropertyModel> properties, String
     private TsPropertyModel processProperty(SymbolTable symbolTable, BeanModel bean, PropertyModel property, String prefix, String suffix) {
         final TsType type = typeFromJava(symbolTable, property.getType(), property.getName(), bean.getOrigin());
         final TsType tsType = property.isOptional() ? type.optional() : type;
-        return new TsPropertyModel(prefix + property.getName() + suffix, tsType, settings.declarePropertiesAsReadOnly, property.getComments());
+        return new TsPropertyModel(prefix + property.getName() + suffix, tsType, settings.declarePropertiesAsReadOnly, false, property.getComments());
     }
 
     private TsEnumModel<?> processEnum(SymbolTable symbolTable, EnumModel<?> enumModel) {
@@ -238,7 +238,7 @@ private TsModel removeInheritedProperties(SymbolTable symbolTable, TsModel tsMod
             final Map<String, TsType> inheritedPropertyTypes = getInheritedProperties(symbolTable, tsModel, bean.getParentAndInterfaces());
             final List<TsPropertyModel> properties = new ArrayList<>();
             for (TsPropertyModel property : bean.getProperties()) {
-                if (!Objects.equals(property.getTsType(), inheritedPropertyTypes.get(property.getName()))) {
+                if (property.isOwnProperty() || !Objects.equals(property.getTsType(), inheritedPropertyTypes.get(property.getName()))) {
                     properties.add(property);
                 }
             }
diff --git a/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/emitter/TsPropertyModel.java b/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/emitter/TsPropertyModel.java
index 4ee4e9e05..397b02000 100644
--- a/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/emitter/TsPropertyModel.java
+++ b/typescript-generator-core/src/main/java/cz/habarta/typescript/generator/emitter/TsPropertyModel.java
@@ -9,12 +9,18 @@
 public class TsPropertyModel extends TsProperty implements Comparable<TsProperty> {
 
     public final boolean readonly;
+    public final boolean ownProperty; // property exists directly on the bean, should not be inherited
     public final List<String> comments;
 
-    public TsPropertyModel(String name, TsType tsType, boolean readonly, List<String> comments) {
+    public TsPropertyModel(String name, TsType tsType, boolean readonly, boolean ownProperty, List<String> comments) {
         super(name, tsType);
         this.readonly = readonly;
         this.comments = comments;
+        this.ownProperty = ownProperty;
+    }
+
+    public boolean isOwnProperty() {
+        return ownProperty;
     }
 
     public List<String> getComments() {
@@ -22,7 +28,7 @@ public List<String> getComments() {
     }
 
     public TsPropertyModel setTsType(TsType type) {
-        return new TsPropertyModel(getName(), type, readonly, getComments());
+        return new TsPropertyModel(getName(), type, readonly, ownProperty, getComments());
     }
 
     @Override
diff --git a/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/GenericsTest.java b/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/GenericsTest.java
index b59468d80..f640486cb 100644
--- a/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/GenericsTest.java
+++ b/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/GenericsTest.java
@@ -84,6 +84,7 @@ public void testImplements() {
         final String nl = settings.newline;
         final String expected =
                 "export interface IA extends IB<string> {" + nl +
+                "    type: string;" + nl +
                 "}" + nl +
                 "" + nl +
                 "export interface IB<T> {" + nl +
diff --git a/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/TaggedUnionsTest.java b/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/TaggedUnionsTest.java
index cf17bb8b7..24b77720b 100644
--- a/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/TaggedUnionsTest.java
+++ b/typescript-generator-core/src/test/java/cz/habarta/typescript/generator/TaggedUnionsTest.java
@@ -196,7 +196,6 @@ public void testTaggedUnionsWithInterfaces() {
     public void testTaggedUnionsWithOverlappingInterfaces() {
         final Settings settings = TestUtils.settings();
         final String output = new TypeScriptGenerator(settings).generateTypeScript(Input.from(IShape3.class));
-        System.out.println(output);
         final String expected = (
                 "\n" +
                 "interface IShape3 {\n" +
@@ -204,6 +203,7 @@ public void testTaggedUnionsWithOverlappingInterfaces() {
                 "}\n" +
                 "\n" +
                 "interface IRectangle3 extends INamedQuadrilateral3 {\n" +
+                "    kind: 'rectangle';\n" +
                 "}\n" +
                 "\n" +
                 "interface ICircle3 extends INamedShape3 {\n" +
@@ -215,6 +215,7 @@ public void testTaggedUnionsWithOverlappingInterfaces() {
                 "}\n" +
                 "\n" +
                 "interface INamedShape3 extends IShape3 {\n" +
+                "    kind: 'circle' | 'rectangle';\n" +
                 "    name: string;\n" +
                 "}\n" +
                 "\n" +
@@ -266,7 +267,6 @@ public void testTaggedUnionsDisabled() {
     public void testTaggedUnionsWithDiamond() {
         final Settings settings = TestUtils.settings();
         final String output = new TypeScriptGenerator(settings).generateTypeScript(Input.from(DiamondA.class));
-        System.out.println(output);
         final String expected = (
                 "\n" +
                 "interface DiamondA {\n" +