diff --git a/Meadow.CLI.Core/DeviceManagement/AssemblyManager.cs b/Meadow.CLI.Core/DeviceManagement/AssemblyManager.cs
index b30c48e3..15df40bd 100644
--- a/Meadow.CLI.Core/DeviceManagement/AssemblyManager.cs
+++ b/Meadow.CLI.Core/DeviceManagement/AssemblyManager.cs
@@ -36,7 +36,7 @@ static Collection<AssemblyNameReference> GetAssemblyNameReferences(string fileNa
                 fileName = Path.Combine(path, fileName);
             }
 
-            if (Path.GetExtension(fileName) != ".exe")
+            if (Path.GetExtension(fileName) != ".exe" && Path.GetExtension(fileName) != ".dll")
             {
                 fileName += ".dll";
             }