Fix warning about missing keyword

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/frontend/mod.rs b/src/frontend/mod.rs
index 3bb912c..bcce43a 100644
--- a/src/frontend/mod.rs
+++ b/src/frontend/mod.rs
@@ -22,7 +22,7 @@ pub mod json;
 pub mod table;
 
 /// Helper function for building a new Frontend object based on the commandline parameters
-pub fn new_frontend(app: &ArgMatches, _config: &Configuration) -> Result<Box<Frontend>> {
+pub fn new_frontend(app: &ArgMatches, _config: &Configuration) -> Result<Box<dyn Frontend>> {
     match app.value_of("output") {
         None | Some("lines") => {
             debug!("No output specified, using default");