diff --git a/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceController.java b/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceController.java
index a1e85364266..d9b9d6a7d0b 100644
--- a/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceController.java
+++ b/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceController.java
@@ -17,6 +17,7 @@
 package com.android.settings.applications.appinfo;
 
 import android.content.Context;
+import android.content.pm.PackageInfo;
 import android.os.UserManager;
 import android.support.annotation.VisibleForTesting;
 import android.support.v7.preference.Preference;
@@ -57,9 +58,13 @@ public class ExternalSourceDetailPreferenceController extends AppInfoPreferenceC
 
     @VisibleForTesting
     boolean isPotentialAppSource() {
+        final PackageInfo packageInfo = mParent.getPackageInfo();
+        if (packageInfo == null) {
+            return false;
+        }
         AppStateInstallAppsBridge.InstallAppsState appState =
                 new AppStateInstallAppsBridge(mContext, null, null).createInstallAppsStateFor(
-                        mPackageName, mParent.getPackageInfo().applicationInfo.uid);
+                        mPackageName, packageInfo.applicationInfo.uid);
         return appState.isPotentialAppSource();
     }
 
diff --git a/tests/robotests/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceControllerTest.java
index dae72fc7ac2..fba4d763207 100644
--- a/tests/robotests/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/applications/appinfo/ExternalSourceDetailPreferenceControllerTest.java
@@ -101,4 +101,12 @@ public class ExternalSourceDetailPreferenceControllerTest {
 
         verify(mPreference).setSummary(summary);
     }
+
+    @Test
+    public void isPotentialAppSource_nullPackageInfo_shouldNotCrash() {
+        when(mUserManager.isManagedProfile()).thenReturn(false);
+
+        mController.isPotentialAppSource();
+        // no crash
+    }
 }