diff --git a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
index 2cc2f3f507168c83225ec544f9cfecdb7ec2ac78..1d09685e1fcfc69e9df27d147a19c0928899c13d 100644
--- a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
@@ -418,6 +418,14 @@ public abstract class XmppActivity extends ActionBarActivity {
                     return adapter;
                 }
 
+                @Override
+                protected PopupDimensions getPopupDimensions() {
+                    final var dims = super.getPopupDimensions();
+                    final var available = new android.widget.PopupWindow().getMaxAvailableHeight(viewBinding.search);
+                    dims.maxHeight = available / 4;
+                    return dims;
+                }
+
                 @Override
                 protected void onViewHidden() {
                     if (getRecyclerView() == null) return;