diff --git a/pretixdroid/app/src/main/java/eu/pretix/pretixdroid/ui/MainActivity.java b/pretixdroid/app/src/main/java/eu/pretix/pretixdroid/ui/MainActivity.java
index eefd0a8..1ec6c05 100644
--- a/pretixdroid/app/src/main/java/eu/pretix/pretixdroid/ui/MainActivity.java
+++ b/pretixdroid/app/src/main/java/eu/pretix/pretixdroid/ui/MainActivity.java
@@ -217,8 +217,10 @@ public void onResume() {
         super.onResume();
         if (config.getCamera()) {
             qrView.setResultHandler(this);
-            qrView.startCamera();
             qrView.setAutoFocus(config.getAutofocus());
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
+                qrView.startCamera();
+            }
             resetView();
         } else {
             // Broadcast sent by Lecom or Zebra scanners