diff --git a/scripts/simple_login.exp b/scripts/simple_login.exp
index 075d1e0..0a5a0a2 100644
--- a/scripts/simple_login.exp
+++ b/scripts/simple_login.exp
@@ -8,7 +8,7 @@
 # of this source tree. You may select, at your option, one of the above-listed licenses.
 
 set timeout 1
-spawn cargo run --example simple_login
+spawn cargo run --example simple_login --features argon2
 match_max 100000
 sleep 1
 expect "*