diff --git a/tools/auto_gen_test_config.py b/tools/auto_gen_test_config.py
index fa018f4579..da4443c432 100755
--- a/tools/auto_gen_test_config.py
+++ b/tools/auto_gen_test_config.py
@@ -24,7 +24,7 @@ from xml.dom.minidom import parse
 
 ATTRIBUTE_LABEL = 'android:label'
 ATTRIBUTE_RUNNER = 'android:name'
-ATTRIBUTE_TARGET_PACKAGE = 'android:targetPackage'
+ATTRIBUTE_PACKAGE = 'package'
 
 PLACEHOLDER_LABEL = '{LABEL}'
 PLACEHOLDER_MODULE = '{MODULE}'
@@ -54,20 +54,22 @@ def main(argv):
 
   manifest = parse(android_manifest)
   instrumentation_elements = manifest.getElementsByTagName('instrumentation')
-  if len(instrumentation_elements) != 1:
-    # Failed to locate instrumentation element in AndroidManifest file.
-    # Empty test config file will be created.
+  manifest_elements = manifest.getElementsByTagName('manifest')
+  if len(instrumentation_elements) != 1 or len(manifest_elements) != 1:
+    # Failed to locate instrumentation or manifest element in AndroidManifest.
+    # file. Empty test config file will be created.
     shutil.copyfile(empty_config, target_config)
     return 0
 
   module = os.path.splitext(os.path.basename(target_config))[0]
   instrumentation = instrumentation_elements[0]
+  manifest = manifest_elements[0]
   if instrumentation.attributes.has_key(ATTRIBUTE_LABEL):
     label = instrumentation.attributes[ATTRIBUTE_LABEL].value
   else:
     label = module
   runner = instrumentation.attributes[ATTRIBUTE_RUNNER].value
-  package = instrumentation.attributes[ATTRIBUTE_TARGET_PACKAGE].value
+  package = manifest.attributes[ATTRIBUTE_PACKAGE].value
   test_type = ('AndroidJUnitTest' if runner.endswith('.AndroidJUnitRunner')
                else 'InstrumentationTest')
 
diff --git a/tools/auto_gen_test_config_test.py b/tools/auto_gen_test_config_test.py
index a438b734a8..e70eff88ac 100644
--- a/tools/auto_gen_test_config_test.py
+++ b/tools/auto_gen_test_config_test.py
@@ -31,7 +31,8 @@ MANIFEST_INVALID = """<?xml version="1.0" encoding="utf-8"?>
 """
 
 MANIFEST_JUNIT_TEST = """<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.android.my.tests.x">
     <instrumentation
         android:name="android.support.test.runner.AndroidJUnitRunner"
         android:targetPackage="com.android.my.tests" />
@@ -39,7 +40,8 @@ MANIFEST_JUNIT_TEST = """<?xml version="1.0" encoding="utf-8"?>
 """
 
 MANIFEST_INSTRUMENTATION_TEST = """<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.android.my.tests.x">
     <instrumentation
         android:name="android.test.InstrumentationTestRunner"
         android:targetPackage="com.android.my.tests"
@@ -69,7 +71,7 @@ EXPECTED_JUNIT_TEST_CONFIG = """<?xml version="1.0" encoding="utf-8"?>
     </target_preparer>
 
     <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
-        <option name="package" value="com.android.my.tests" />
+        <option name="package" value="com.android.my.tests.x" />
         <option name="runner" value="android.support.test.runner.AndroidJUnitRunner" />
     </test>
 </configuration>
@@ -97,16 +99,17 @@ EXPECTED_INSTRUMENTATION_TEST_CONFIG = """<?xml version="1.0" encoding="utf-8"?>
     </target_preparer>
 
     <test class="com.android.tradefed.testtype.InstrumentationTest" >
-        <option name="package" value="com.android.my.tests" />
+        <option name="package" value="com.android.my.tests.x" />
         <option name="runner" value="android.test.InstrumentationTestRunner" />
     </test>
 </configuration>
 """
 
-MAKE_ROOT = os.path.dirname(os.path.dirname(__file__))
-EMPTY_TEST_CONFIG = os.path.join(MAKE_ROOT, 'core', 'empty_test_config.xml')
+TOOLS_DIR = os.path.dirname(os.path.dirname(__file__))
+EMPTY_TEST_CONFIG = os.path.join(
+    TOOLS_DIR, '..', 'core', 'empty_test_config.xml')
 INSTRUMENTATION_TEST_CONFIG_TEMPLATE = os.path.join(
-    MAKE_ROOT, 'core', 'instrumentation_test_config_template.xml')
+    TOOLS_DIR, '..', 'core', 'instrumentation_test_config_template.xml')
 
 
 class AutoGenTestConfigUnittests(unittest.TestCase):