diff --git a/src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java b/src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java
index 3c1e218f21c2cbedfc1d2cd8e51a90c4abf82eb1..637a7f55f39b7e33c6eac31e0babb5187a8aa8d4 100644
--- a/src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java
@@ -160,7 +160,7 @@ public class UriHandlerActivity extends BaseActivity {
 
         if (uri == null) return true;
 
-        if ("sgnl".equals(uri.getScheme())) {
+        if ("sgnl".equals(uri.getScheme()) && uri.getQueryParameter("pack_id") != null) {
             stickers = Uri.parse("https://stickers.cheogram.com/signal/" + uri.getQueryParameter("pack_id") + "," + uri.getQueryParameter("pack_key"));
             if (hasStoragePermission(1)) downloadStickers();
             return false;