diff --git a/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/expected.xml b/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/expected.xml
new file mode 100644
index 000000000000..5e933496b9cf
--- /dev/null
+++ b/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/expected.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<problems>
+</problems>
\ No newline at end of file
diff --git a/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/src/A.kt b/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/src/A.kt
new file mode 100644
index 000000000000..8f0153d3ada1
--- /dev/null
+++ b/java/java-tests/testData/inspection/jvm/deadCode/implementedInterface/src/A.kt
@@ -0,0 +1,7 @@
+interface Parent {
+}
+class Child : Parent {
+}
+fun main() {
+  Child()
+}
\ No newline at end of file
diff --git a/jvm/jvm-analysis-kotlin-tests/testSrc/com/intellij/codeInspection/tests/kotlin/UnusedDeclarationKtTest20.java b/jvm/jvm-analysis-kotlin-tests/testSrc/com/intellij/codeInspection/tests/kotlin/UnusedDeclarationKtTest20.java
index 5a9678b6c55a..21789eb54324 100644
--- a/jvm/jvm-analysis-kotlin-tests/testSrc/com/intellij/codeInspection/tests/kotlin/UnusedDeclarationKtTest20.java
+++ b/jvm/jvm-analysis-kotlin-tests/testSrc/com/intellij/codeInspection/tests/kotlin/UnusedDeclarationKtTest20.java
@@ -24,6 +24,10 @@ public class UnusedDeclarationKtTest20 extends AbstractUnusedDeclarationTest {
     doTest();
   }
 
+  public void testImplementedInterface() {
+    doTest();
+  }
+
   public void testReachableFromMain() {
     myTool.ADD_MAINS_TO_ENTRIES = true;
     doTest();