diff --git a/src/ipv4.rs b/src/ipv4.rs
index f585e07..c5cc660 100644
--- a/src/ipv4.rs
+++ b/src/ipv4.rs
@@ -194,7 +194,7 @@ impl FromStr for Ipv4Network {
         let addr = parse_addr(addr_str)?;
         let prefix = if prefix_str.is_empty() {
             IPV4_BITS
-        }else {
+        } else {
             parse_prefix(prefix_str, IPV4_BITS)?
         };
         Ipv4Network::new(addr, prefix)
diff --git a/src/ipv6.rs b/src/ipv6.rs
index 6825652..cbee659 100644
--- a/src/ipv6.rs
+++ b/src/ipv6.rs
@@ -174,7 +174,7 @@ impl FromStr for Ipv6Network {
             .map_err(|_| IpNetworkError::InvalidAddr(addr_str.to_string()))?;
         let prefix = if prefix_str.is_empty() {
             IPV6_BITS
-        }else {
+        } else {
             parse_prefix(prefix_str, IPV6_BITS)?
         };
         Ipv6Network::new(addr, prefix)