diff --git a/host-program/src/bin/zkm-prove.rs b/host-program/src/bin/zkm-prove.rs
index 6cdf1a7f..32bdc41f 100644
--- a/host-program/src/bin/zkm-prove.rs
+++ b/host-program/src/bin/zkm-prove.rs
@@ -117,7 +117,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                     }
                     "mem-alloc-vec" => log::info!("Executing the guest program  successfully."),  //The  guest program returns nothing.
                     _ => ,
-                        
+                }
             }
         }
         Ok(None) => {