diff --git a/src/main.rs b/src/main.rs
index 6e23d5556..0abe1fab9 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -80,14 +80,9 @@ fn main() {
         .map(std::string::ToString::to_string)
         .unwrap_or_else(String::new);
 
-    let mut net_params = None;
-    if cmd_arguments.is_present("net") {
-        if let Some(net) = cmd_arguments.value_of("net") {
-            net_params = Some(net.to_string());
-        } else {
-            net_params = Some(String::new())
-        }
-    }
+    let net_params = cmd_arguments
+        .value_of("net")
+        .map(std::string::ToString::to_string);
 
     let rng_path = match cmd_arguments.occurrences_of("rng") {
         0 => None,