diff --git a/vmm/src/config.rs b/vmm/src/config.rs
index 8bff895fe..e18e2a5cf 100644
--- a/vmm/src/config.rs
+++ b/vmm/src/config.rs
@@ -288,7 +288,7 @@ impl NetConfig {
 
         let mut tap: Option<String> = None;
         let mut ip: Ipv4Addr = Ipv4Addr::new(192, 168, 249, 1);
-        let mut mask: Ipv4Addr = Ipv4Addr::new(255, 255, 255, 0);;
+        let mut mask: Ipv4Addr = Ipv4Addr::new(255, 255, 255, 0);
         let mut mac: MacAddr = MacAddr::local_random();
         let iommu = parse_iommu(iommu_str)?;