diff --git a/compiler/android-tests/android-module/src/org/jetbrains/kotlin/android/tests/AbstractCodegenTestCaseOnAndroid.java b/compiler/android-tests/android-module/src/org/jetbrains/kotlin/android/tests/AbstractCodegenTestCaseOnAndroid.java
index 2f3d6ab7b3e..2010512d246 100644
--- a/compiler/android-tests/android-module/src/org/jetbrains/kotlin/android/tests/AbstractCodegenTestCaseOnAndroid.java
+++ b/compiler/android-tests/android-module/src/org/jetbrains/kotlin/android/tests/AbstractCodegenTestCaseOnAndroid.java
@@ -24,11 +24,10 @@ public class AbstractCodegenTestCaseOnAndroid extends TestCase {
 
     protected void invokeBoxMethod(String filePath, String expectedResult) throws Exception {
         try {
-            Class clazz;
+            String simpelName = filePath.substring(filePath.lastIndexOf("/") + 1);
             String packageName = filePath.replaceAll("\\\\|-|\\.|/", "_");
-            clazz = Class.forName(packageName + "." + getPackageClassName(packageName));
-            Method method;
-            method = clazz.getMethod("box");
+            Class clazz = Class.forName(packageName + "." + getPackageClassName(simpelName));
+            Method method = clazz.getMethod("box");
             assertEquals(expectedResult, method.invoke(null));
         }
         catch (Throwable e) {
@@ -36,7 +35,7 @@ public class AbstractCodegenTestCaseOnAndroid extends TestCase {
         }
     }
 
-    public static String getPackageClassName(String packageName) {
-        return Character.toUpperCase(packageName.charAt(0)) + packageName.substring(1, packageName.length()) + "Package";
+    public static String getPackageClassName(String fileName) {
+        return Character.toUpperCase(fileName.charAt(0)) + fileName.substring(1).replaceAll("\\.kt", "Kt");
     }
 }