diff --git a/compiler/testData/readClass/fun/ExtFunInClass.kt b/compiler/testData/readClass/fun/ExtFunInClass.kt
new file mode 100644
index 00000000000..c339935326e
--- /dev/null
+++ b/compiler/testData/readClass/fun/ExtFunInClass.kt
@@ -0,0 +1,5 @@
+namespace test
+
+class ExtFunInClass {
+    fun Int.shuffle() = 1
+}