diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index 3b2282af8ff1af8e4e2cff2dee65caa137407bdb..0c8ccd9ce317bb861beb22ed52cabba9905c7b92 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -1448,6 +1448,7 @@ public class XmppConnectionService extends Service {
         } catch (Throwable throwable) {
             Log.e(Config.LOGTAG, "unable to initialize security provider", throwable);
         }
+        Resolver.init(this);
         updateMemorizingTrustManager();
         final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
         final int cacheSize = maxMemory / 8;