diff --git a/lua-di/DependencyInjectionModule.lua b/lua-di/DependencyInjectionModule.lua
index c49cba1..1a7525b 100644
--- a/lua-di/DependencyInjectionModule.lua
+++ b/lua-di/DependencyInjectionModule.lua
@@ -55,7 +55,7 @@ local DependencyInjectionModule = function(configure)
         end
 
         if autoInjectEnabled then
-            local moduleName = argumentName:gsub("__", ".")
+            local moduleName = argumentName:gsub("___", "-"):gsub("__", ".")
 
             return self.getInstance(moduleName)
         end
@@ -170,6 +170,11 @@ local DependencyInjectionModule = function(configure)
             return singletons[moduleName].instance
         end
 
+        if instance then
+            -- provider instance
+            return instance
+        end
+
         local moduleHandle = dynamicRequire(moduleName)
         local moduleConstructor = getConstructor(moduleName, moduleHandle)