diff --git a/Duplicati/Server/WebServer/RESTMethods/HyperV.cs b/Duplicati/Server/WebServer/RESTMethods/HyperV.cs
index f1eeb2fd9..5bb2e8fcc 100644
--- a/Duplicati/Server/WebServer/RESTMethods/HyperV.cs
+++ b/Duplicati/Server/WebServer/RESTMethods/HyperV.cs
@@ -29,6 +29,8 @@ namespace Duplicati.Server.WebServer.RESTMethods
             // Early exit in case we are non-windows to prevent attempting to load Windows-only components
             if (Library.Utility.Utility.IsClientWindows)
                 RealGET(key, info);
+            else
+                info.OutputOK(new string[0]);
         }
 
         // Make sure the JIT does not attempt to inline this call and thus load
@@ -40,7 +42,7 @@ namespace Duplicati.Server.WebServer.RESTMethods
 
             if (!hypervUtility.IsHyperVInstalled)
             {
-                info.OutputOK();
+                info.OutputOK(new string[0]);
                 return;
             }
 
@@ -64,7 +66,7 @@ namespace Duplicati.Server.WebServer.RESTMethods
             }
             catch (Exception ex)
             {
-                info.ReportClientError("Failed to enumerate Hyper-V virtual machines: " + ex.Message);
+                info.ReportServerError("Failed to enumerate Hyper-V virtual machines: " + ex.Message);
             }
         }
 
diff --git a/Duplicati/Server/WebServer/RESTMethods/MSSQL.cs b/Duplicati/Server/WebServer/RESTMethods/MSSQL.cs
index 7ad9c6bfb..5d2c9f701 100644
--- a/Duplicati/Server/WebServer/RESTMethods/MSSQL.cs
+++ b/Duplicati/Server/WebServer/RESTMethods/MSSQL.cs
@@ -29,6 +29,8 @@ namespace Duplicati.Server.WebServer.RESTMethods
             // Early exit in case we are non-windows to prevent attempting to load Windows-only components
             if (Library.Utility.Utility.IsClientWindows)
                 RealGET(key, info);
+            else
+                info.OutputOK(new string[0]);
         }
 
         // Make sure the JIT does not attempt to inline this call and thus load
@@ -40,7 +42,7 @@ namespace Duplicati.Server.WebServer.RESTMethods
 
             if (!mssqlUtility.IsMSSQLInstalled)
             {
-                info.OutputOK();
+                info.OutputOK(new string[0]);
                 return;
             }
 
@@ -62,7 +64,7 @@ namespace Duplicati.Server.WebServer.RESTMethods
             }
             catch (Exception ex)
             {
-                info.ReportClientError("Failed to enumerate Microsoft SQL Server databases: " + ex.Message);
+                info.ReportServerError("Failed to enumerate Microsoft SQL Server databases: " + ex.Message);
             }
         }