diff --git a/src/main/java/net/rptools/maptool/client/functions/LibraryFunctions.java b/src/main/java/net/rptools/maptool/client/functions/LibraryFunctions.java
index d038695320..a5cfc0fbcd 100644
--- a/src/main/java/net/rptools/maptool/client/functions/LibraryFunctions.java
+++ b/src/main/java/net/rptools/maptool/client/functions/LibraryFunctions.java
@@ -101,7 +101,8 @@ private JsonArray listLibraryContents(Library library)
         .thenAccept(
             l -> {
               l.forEach(json::add);
-            });
+            })
+        .get();
 
     return json;
   }