diff --git a/pkgs/by-name/sw/switch-to-configuration-ng/src/src/main.rs b/pkgs/by-name/sw/switch-to-configuration-ng/src/src/main.rs
index a64d8566225b..64fc71e85aed 100644
--- a/pkgs/by-name/sw/switch-to-configuration-ng/src/src/main.rs
+++ b/pkgs/by-name/sw/switch-to-configuration-ng/src/src/main.rs
@@ -1037,7 +1037,7 @@ fn do_system_switch(action: Action) -> anyhow::Result<()> {
         die();
     };
 
-    let Ok(_lock) = Flock::lock(lock, FlockArg::LockExclusive) else {
+    let Ok(_lock) = Flock::lock(lock, FlockArg::LockExclusiveNonblock) else {
         eprintln!("Could not acquire lock");
         die();
     };