diff --git a/src/org/fdroid/fdroid/QrGenAsyncTask.java b/src/org/fdroid/fdroid/QrGenAsyncTask.java
index ef2f62787..ebfc0fc19 100644
--- a/src/org/fdroid/fdroid/QrGenAsyncTask.java
+++ b/src/org/fdroid/fdroid/QrGenAsyncTask.java
@@ -16,6 +16,8 @@ import com.google.zxing.WriterException;
 import com.google.zxing.encode.Contents;
 import com.google.zxing.encode.QRCodeEncoder;
 
+// zxing is android-8 and above
+@TargetApi(8)
 public class QrGenAsyncTask extends AsyncTask<String, Void, Void> {
     private static final String TAG = "QrGenAsyncTask";
 
diff --git a/src/org/fdroid/fdroid/views/LocalRepoActivity.java b/src/org/fdroid/fdroid/views/LocalRepoActivity.java
index 81b82fb2f..a4841d633 100644
--- a/src/org/fdroid/fdroid/views/LocalRepoActivity.java
+++ b/src/org/fdroid/fdroid/views/LocalRepoActivity.java
@@ -188,7 +188,8 @@ public class LocalRepoActivity extends Activity {
                 .replaceAll("ssid=[^?]*", "")
                 .toUpperCase(Locale.ENGLISH);
         Log.i("QRURI", qrUriString);
-        new QrGenAsyncTask(this, R.id.repoQrCode).execute(qrUriString);
+        if (Build.VERSION.SDK_INT >= 8) // zxing requires >= 8
+            new QrGenAsyncTask(this, R.id.repoQrCode).execute(qrUriString);
 
         TextView wifiNetworkNameTextView = (TextView) findViewById(R.id.wifiNetworkName);
         wifiNetworkNameTextView.setText(FDroidApp.ssid);
diff --git a/src/org/fdroid/fdroid/views/QrWizardDownloadActivity.java b/src/org/fdroid/fdroid/views/QrWizardDownloadActivity.java
index a4889ec09..a776fabf5 100644
--- a/src/org/fdroid/fdroid/views/QrWizardDownloadActivity.java
+++ b/src/org/fdroid/fdroid/views/QrWizardDownloadActivity.java
@@ -2,11 +2,8 @@
 package org.fdroid.fdroid.views;
 
 import android.app.Activity;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.SharedPreferences;
+import android.content.*;
+import android.os.Build;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.support.v4.content.LocalBroadcastManager;
@@ -73,7 +70,8 @@ public class QrWizardDownloadActivity extends Activity {
         qrString += "://" + FDroidApp.ipAddressString;
         qrString += ":" + FDroidApp.port;
 
-        new QrGenAsyncTask(this, R.id.qrWizardImage).execute(qrString);
+        if (Build.VERSION.SDK_INT >= 8) // zxing requires >= 8
+            new QrGenAsyncTask(this, R.id.qrWizardImage).execute(qrString);
         Log.i(TAG, "qr: " + qrString);
 
         TextView wifiNetworkName = (TextView) findViewById(R.id.qrWifiNetworkName);
diff --git a/src/org/fdroid/fdroid/views/QrWizardWifiNetworkActivity.java b/src/org/fdroid/fdroid/views/QrWizardWifiNetworkActivity.java
index 2f667a1ea..8e08e2667 100644
--- a/src/org/fdroid/fdroid/views/QrWizardWifiNetworkActivity.java
+++ b/src/org/fdroid/fdroid/views/QrWizardWifiNetworkActivity.java
@@ -2,12 +2,10 @@
 package org.fdroid.fdroid.views;
 
 import android.app.Activity;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
+import android.content.*;
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.content.LocalBroadcastManager;
 import android.util.Log;
@@ -92,12 +90,11 @@ public class QrWizardWifiNetworkActivity extends Activity {
             if (wifiInfo.getHiddenSSID())
                 qrString += ";H:true";
             qrString += ";;";
-            new QrGenAsyncTask(this, R.id.qrWizardImage).execute(qrString);
-            Log.i(TAG, "qr: " + qrString);
+            if (Build.VERSION.SDK_INT >= 8) // zxing requires >= 8
+                new QrGenAsyncTask(this, R.id.qrWizardImage).execute(qrString);
 
             TextView wifiNetworkName = (TextView) findViewById(R.id.qrWifiNetworkName);
             wifiNetworkName.setText(wifiInfo.getSSID());
-            Log.i(TAG, "wifi network name: " + wifiInfo.getSSID());
         }
     }