diff --git a/compiler/testData/writeSignature/MapEntry.kt b/compiler/testData/writeSignature/MapEntry.kt
new file mode 100644
index 00000000000..472593790bc
--- /dev/null
+++ b/compiler/testData/writeSignature/MapEntry.kt
@@ -0,0 +1,6 @@
+fun getEntry(): jet.Map.Entry<Int, String>? = null
+
+// method: namespace::getEntry
+// jvm signature:     ()Ljava/util/Map$Entry;
+// generic signature: ()Ljava/util/Map$Entry<Ljava/lang/Integer;Ljava/lang/String;>;
+// kotlin signature:  ()?Ljet/Map.Entry<Ljava/lang/Integer;Ljava/lang/String;>;
diff --git a/compiler/testData/writeSignature/MutableMapEntry.kt b/compiler/testData/writeSignature/MutableMapEntry.kt
new file mode 100644
index 00000000000..6f1a31ba6de
--- /dev/null
+++ b/compiler/testData/writeSignature/MutableMapEntry.kt
@@ -0,0 +1,6 @@
+fun getEntry(): jet.MutableMap.MutableEntry<Int, String>? = null
+
+// method: namespace::getEntry
+// jvm signature:     ()Ljava/util/Map$Entry;
+// generic signature: ()Ljava/util/Map$Entry<Ljava/lang/Integer;Ljava/lang/String;>;
+// kotlin signature:  ()?Ljet/MutableMap.MutableEntry<Ljava/lang/Integer;Ljava/lang/String;>;