diff --git a/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTestGenerated.java b/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTestGenerated.java
index 97888252581..c8359bf9773 100644
--- a/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTestGenerated.java
+++ b/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTestGenerated.java
@@ -41,6 +41,11 @@ public class IncrementalJpsTestGenerated extends AbstractIncrementalJpsTest {
         doTest("jps-plugin/testData/incremental/classSignatureChanged/");
     }
     
+    @TestMetadata("classSignatureUnchanged")
+    public void testClassSignatureUnchanged() throws Exception {
+        doTest("jps-plugin/testData/incremental/classSignatureUnchanged/");
+    }
+    
     @TestMetadata("constantUnchanged")
     public void testConstantUnchanged() throws Exception {
         doTest("jps-plugin/testData/incremental/constantUnchanged/");
diff --git a/jps-plugin/testData/incremental/classSignatureUnchanged/build.log b/jps-plugin/testData/incremental/classSignatureUnchanged/build.log
new file mode 100644
index 00000000000..cc8924d4caa
--- /dev/null
+++ b/jps-plugin/testData/incremental/classSignatureUnchanged/build.log
@@ -0,0 +1,6 @@
+Cleaning output files:
+out/production/module/test/Klass.class
+End of files
+Compiling files:
+src/class.kt
+End of files
\ No newline at end of file
diff --git a/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt b/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt
new file mode 100644
index 00000000000..3f1b899222d
--- /dev/null
+++ b/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt
@@ -0,0 +1,7 @@
+package test
+
+class Klass {
+    fun foo() = ":)"
+
+    fun bar() = ":("
+}
diff --git a/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt.new b/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt.new
new file mode 100644
index 00000000000..8ac6fd17f05
--- /dev/null
+++ b/jps-plugin/testData/incremental/classSignatureUnchanged/class.kt.new
@@ -0,0 +1,8 @@
+package test
+
+// swapped functions
+class Klass {
+    fun bar() = ":("
+
+    fun foo() = ":)"
+}
diff --git a/jps-plugin/testData/incremental/classSignatureUnchanged/usage.kt b/jps-plugin/testData/incremental/classSignatureUnchanged/usage.kt
new file mode 100644
index 00000000000..2ee98c0e4be
--- /dev/null
+++ b/jps-plugin/testData/incremental/classSignatureUnchanged/usage.kt
@@ -0,0 +1,6 @@
+package test
+
+fun usage(a: Klass) {
+    a.foo()
+    a.bar()
+}