diff --git a/Runtime/Attribute/InjectAttribute.cs b/Runtime/Attribute/InjectAttribute.cs
index 89457d6..01e14a0 100644
--- a/Runtime/Attribute/InjectAttribute.cs
+++ b/Runtime/Attribute/InjectAttribute.cs
@@ -2,7 +2,7 @@
 
 namespace Doinject
 {
-    [AttributeUsage(AttributeTargets.Method)]
+    [AttributeUsage(AttributeTargets.Constructor|AttributeTargets.Method)]
     public class InjectAttribute : Attribute
     {
     }
diff --git a/Tests/TestObjects.cs b/Tests/TestObjects.cs
index fe5bf8d..0ce61b3 100644
--- a/Tests/TestObjects.cs
+++ b/Tests/TestObjects.cs
@@ -67,6 +67,7 @@ public class WithArgsObject : IAsyncDisposable
         public string Arg2 { get; }
         public List<int> Arg3 { get; }
 
+        [Inject]
         public WithArgsObject(int arg1, InjectedObject injectedObject, string arg2, List<int> arg3)
         {
             InjectedObject = injectedObject;