diff --git a/jps/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTest.kt b/jps/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTest.kt
index b456e666d29..6b47071ae27 100644
--- a/jps/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTest.kt
+++ b/jps/jps-plugin/test/org/jetbrains/jet/jps/build/IncrementalJpsTest.kt
@@ -116,6 +116,10 @@ public class IncrementalJpsTest : JpsBuildTestCase() {
         doTest()
     }
 
+    fun testClassSignatureChanged() {
+        doTest()
+    }
+
     private class MyLogger(val rootPath: String) : ProjectBuilderLoggerBase() {
         private val logBuf = StringBuilder()
         public val log: String
@@ -127,7 +131,7 @@ public class IncrementalJpsTest : JpsBuildTestCase() {
 
             fun String.replaceHashWithStar(): String {
                 val lastHyphen = this.lastIndexOf('-')
-                if (lastHyphen != -1 && substring(lastHyphen + 1).matches("[0-9a-f]{8}\\.class")) {
+                if (lastHyphen != -1 && substring(lastHyphen + 1).matches("[0-9a-f]{1,8}\\.class")) {
                     return substring(0, lastHyphen) + "-*.class"
                 }
                 return this
diff --git a/jps/jps-plugin/testData/incremental/classSignatureChanged/build.log b/jps/jps-plugin/testData/incremental/classSignatureChanged/build.log
new file mode 100644
index 00000000000..03df388cc2b
--- /dev/null
+++ b/jps/jps-plugin/testData/incremental/classSignatureChanged/build.log
@@ -0,0 +1,13 @@
+Cleaning output files:
+out/production/module/test/Klass.class
+End of files
+Compiling files:
+src/class.kt
+End of files
+Cleaning output files:
+out/production/module/test/TestPackage-usage-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+src/usage.kt
+End of files
\ No newline at end of file
diff --git a/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt b/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt
new file mode 100644
index 00000000000..207a0d6ff20
--- /dev/null
+++ b/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt
@@ -0,0 +1,5 @@
+package test
+
+class Klass {
+    fun foo() = ":)"
+}
diff --git a/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt.new b/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt.new
new file mode 100644
index 00000000000..7100d314c78
--- /dev/null
+++ b/jps/jps-plugin/testData/incremental/classSignatureChanged/class.kt.new
@@ -0,0 +1,5 @@
+package test
+
+class Klass {
+    fun foo() = 123
+}
diff --git a/jps/jps-plugin/testData/incremental/classSignatureChanged/usage.kt b/jps/jps-plugin/testData/incremental/classSignatureChanged/usage.kt
new file mode 100644
index 00000000000..316732663ce
--- /dev/null
+++ b/jps/jps-plugin/testData/incremental/classSignatureChanged/usage.kt
@@ -0,0 +1,5 @@
+package test
+
+fun usage(a: Klass) {
+    a.foo()
+}