diff --git a/app/src/main/java/com/github/yeriomin/yalpstore/DownloadOptionsFragment.java b/app/src/main/java/com/github/yeriomin/yalpstore/DownloadOptionsFragment.java
index 60fd310bc..63292ad91 100644
--- a/app/src/main/java/com/github/yeriomin/yalpstore/DownloadOptionsFragment.java
+++ b/app/src/main/java/com/github/yeriomin/yalpstore/DownloadOptionsFragment.java
@@ -97,6 +97,8 @@ public class DownloadOptionsFragment extends DetailsFragment {
     private boolean isConvertible(App app) {
         return isInstalled(app)
             && !app.getPackageName().equals(BuildConfig.APPLICATION_ID)
+            && null != app.getPackageInfo().applicationInfo
+            && null != app.getPackageInfo().applicationInfo.sourceDir
             && !app.getPackageInfo().applicationInfo.sourceDir.endsWith("pkg.apk")
         ;
     }