diff --git a/README.md b/README.md
new file mode 100644
index 0000000..92013a8
--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+error[E0161]: cannot move a value of type `dyn Module<A, S, E>`
+  --> src/modules/mod.rs:83:19
+   |
+83 |         let res = cmd.run();
+   |                   ^^^^^^^^^ the size of `dyn Module<A, S, E>` cannot be statically determined
+
+For more information about this error, try `rustc --explain E0161`.
+error: could not compile `rustible` due to previous error
diff --git a/src/modules/mod.rs b/src/modules/mod.rs
index d11880a..825262c 100644
--- a/src/modules/mod.rs
+++ b/src/modules/mod.rs
@@ -116,7 +116,7 @@ pub trait ModuleSetup<A, S, E> {
 
 /// A Module takes some arguments which can be serialized back to the playbook run, and can be run to produce
 /// a certain result.
-pub trait Module<A: Serialize, S: Serialize, E: Serialize>: Sized {
+pub trait Module<A: Serialize, S: Serialize, E: Serialize> {
     /// Return the module name as string slice
     fn module_name(&self) -> &'static str;