diff --git a/Dalamud/Plugin/Internal/Types/PluginRepository.cs b/Dalamud/Plugin/Internal/Types/PluginRepository.cs
index 2f63070c3..a49fbee37 100644
--- a/Dalamud/Plugin/Internal/Types/PluginRepository.cs
+++ b/Dalamud/Plugin/Internal/Types/PluginRepository.cs
@@ -205,6 +205,13 @@ private bool IsValidManifest(RemotePluginManifest manifest)
             return false;
         }
 
+        if (manifest.TestingAssemblyVersion != null &&
+            manifest.TestingAssemblyVersion > manifest.AssemblyVersion &&
+            manifest.TestingDalamudApiLevel == null)
+        {
+            Log.Warning("Plugin {PluginName} in {RepoLink} has a testing version, but no testing API associated with it, \"TestingDalamudApiLevel\" is required.", manifest.InternalName, this.PluginMasterUrl);
+        }
+
         return true;
     }