diff --git a/test/org/jetbrains/java/decompiler/SingleClassesTest.java b/test/org/jetbrains/java/decompiler/SingleClassesTest.java
index fe54ecb..3a213c4 100644
--- a/test/org/jetbrains/java/decompiler/SingleClassesTest.java
+++ b/test/org/jetbrains/java/decompiler/SingleClassesTest.java
@@ -112,6 +112,7 @@ public class SingleClassesTest {
   @Test public void testVarArgCalls() { doTest("pkg/TestVarArgCalls"); }
   @Test public void testLambdaParams() { doTest("pkg/TestLambdaParams"); }
   @Test public void testInterfaceMethods() { doTest("pkg/TestInterfaceMethods"); }
+  //@Test public void testUnionType() { doTest("pkg/TestUnionType"); } //TODO: fix
 
   private void doTest(String testFile, String... companionFiles) {
     ConsoleDecompiler decompiler = fixture.getDecompiler();
diff --git a/testData/classes/pkg/TestUnionType.class b/testData/classes/pkg/TestUnionType.class
new file mode 100644
index 0000000..b299158
Binary files /dev/null and b/testData/classes/pkg/TestUnionType.class differ
diff --git a/testData/results/TestUnionType.dec b/testData/results/TestUnionType.dec
new file mode 100644
index 0000000..1b541d8
--- /dev/null
+++ b/testData/results/TestUnionType.dec
@@ -0,0 +1,28 @@
+package pkg;
+
+import java.io.Serializable;
+import java.util.Comparator;
+
+public interface TestUnionType {
+   static Comparator comparingInt() {
+      return (Comparator & Serializable)((c1, c2) -> {// 8
+         return 1;
+      }));
+   }
+}
+
+class 'pkg/TestUnionType' {
+   method 'lambda$comparingInt$ff46620a$1 (Ljava/lang/Object;Ljava/lang/Object;)I' {
+      0      8
+      1      8
+   }
+
+   method 'comparingInt ()Ljava/util/Comparator;' {
+      5      7
+      8      7
+      b      7
+   }
+}
+
+Lines mapping:
+8 <-> 8
diff --git a/testData/src/pkg/TestUnionType.java b/testData/src/pkg/TestUnionType.java
new file mode 100644
index 0000000..13c2bf7
--- /dev/null
+++ b/testData/src/pkg/TestUnionType.java
@@ -0,0 +1,10 @@
+package pkg;
+
+import java.io.Serializable;
+import java.util.Comparator;
+
+public interface TestUnionType {
+  public static Comparator comparingInt() {
+    return (Comparator & Serializable)(c1, c2) -> 1;
+  }
+}