diff --git a/js/js.tests/test/org/jetbrains/k2js/test/semantics/PropertyOverrideTest.java b/js/js.tests/test/org/jetbrains/k2js/test/semantics/PropertyOverrideTest.java
index f3b93d8a0e5..4569357f048 100644
--- a/js/js.tests/test/org/jetbrains/k2js/test/semantics/PropertyOverrideTest.java
+++ b/js/js.tests/test/org/jetbrains/k2js/test/semantics/PropertyOverrideTest.java
@@ -51,4 +51,20 @@ public class PropertyOverrideTest extends SingleFileTranslationTest {
     public void testOverrideExtensionProperty() throws Exception {
         checkFooBoxIsOk();
     }
+
+    public void testInitOverrideInConstructor() throws Exception {
+        checkFooBoxIsOk();
+    }
+
+    public void testInitOverrideInConstructorExplicitThis() throws Exception {
+        checkFooBoxIsOk();
+    }
+
+    public void testInitOverrideInConstructorComplex() throws Exception {
+        checkFooBoxIsOk();
+    }
+
+    public void testInitOverrideVarInConstructor() throws Exception {
+        checkFooBoxIsOk();
+    }
 }
diff --git a/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructor.kt b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructor.kt
new file mode 100644
index 00000000000..821a5ea5f2f
--- /dev/null
+++ b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructor.kt
@@ -0,0 +1,21 @@
+// Test for KT-5673
+
+package foo
+
+trait Holder {
+    val element: String
+}
+
+class BasicHolder : Holder {
+    override val element: String
+
+    {
+        element = "ok"
+    }
+}
+
+fun box(): String {
+    assertEquals("ok", BasicHolder().element)
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorComplex.kt b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorComplex.kt
new file mode 100644
index 00000000000..0e7e76131ce
--- /dev/null
+++ b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorComplex.kt
@@ -0,0 +1,30 @@
+// Test for KT-5673
+
+package foo
+
+trait Holder {
+    val element: String
+}
+
+open class BasicHolder : Holder {
+    override val element: String
+        get() = $element + $element
+
+    {
+        element = "1"
+    }
+}
+
+class AdvancedHolder : BasicHolder() {
+    override val element: String
+
+    {
+        element = super.element + super.element
+    }
+}
+
+fun box(): String {
+    assertEquals("1111", AdvancedHolder().element)
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorExplicitThis.kt b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorExplicitThis.kt
new file mode 100644
index 00000000000..02969103ed6
--- /dev/null
+++ b/js/js.translator/testData/propertyOverride/cases/initOverrideInConstructorExplicitThis.kt
@@ -0,0 +1,21 @@
+// Test for KT-5673
+
+package foo
+
+trait Holder {
+    val element: String
+}
+
+class BasicHolder : Holder {
+    override val element: String
+
+    {
+        this.element = "ok"
+    }
+}
+
+fun box(): String {
+    assertEquals("ok", BasicHolder().element)
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/js/js.translator/testData/propertyOverride/cases/initOverrideVarInConstructor.kt b/js/js.translator/testData/propertyOverride/cases/initOverrideVarInConstructor.kt
new file mode 100644
index 00000000000..362ab1337f3
--- /dev/null
+++ b/js/js.translator/testData/propertyOverride/cases/initOverrideVarInConstructor.kt
@@ -0,0 +1,21 @@
+// Test for KT-5673
+
+package foo
+
+trait Holder {
+    var element: String
+}
+
+class BasicHolder : Holder {
+    override var element: String = "not ok"
+
+    {
+        element = "ok"
+    }
+}
+
+fun box(): String {
+    assertEquals("ok", BasicHolder().element)
+
+    return "OK"
+}
\ No newline at end of file