diff --git a/src/module/command.rs b/src/module/command.rs
index 729f52a4..09d2792d 100644
--- a/src/module/command.rs
+++ b/src/module/command.rs
@@ -1,5 +1,8 @@
 use std::result::Result;
 
+use clap::ArgMatches;
+
+use runtime::Runtime;
 use super::ModuleError;
 use storage::backend::{StorageBackend, StorageBackendError};
 
@@ -8,5 +11,8 @@ pub type CommandResult = Result<(), Result<ModuleError, CommandError>>;
 
 pub trait ExecutableCommand {
     fn get_callname() -> &'static str;
-    fn exec(&self, rt: &Runtime, s: StorageBackend) -> CommandResult;
+    fn exec(&self,
+            rt: &Runtime,
+            matches: &ArgMatches<'a, 'a>,
+            s: StorageBackend) -> CommandResult;
 }