diff --git a/src/action/macos/encrypt_apfs_volume.rs b/src/action/macos/encrypt_apfs_volume.rs
index 52db643..abfafd6 100644
--- a/src/action/macos/encrypt_apfs_volume.rs
+++ b/src/action/macos/encrypt_apfs_volume.rs
@@ -252,7 +252,7 @@ impl Action for EncryptApfsVolume {
 
 #[derive(thiserror::Error, Debug)]
 pub enum EncryptApfsVolumeError {
-    #[error("The keychain has an existing password for a non-existing \"{0}\" volume on disk `{1}`, consider removing the password with `security delete-generic-password  -a \"{0}\" -s \"Nix Store\" -l \"{1} encryption password\" -D \"Encrypted volume password\"`")]
+    #[error("The keychain has an existing password for a non-existing \"{0}\" volume on disk `{1}`, consider removing the password with `sudo security delete-generic-password  -a \"{0}\" -s \"Nix Store\" -l \"{1} encryption password\" -D \"Encrypted volume password\"`. Note that it's possible to have several passwords stored, so you may need to run this command several times until receiving the message `The specified item could not be found in the keychain.`")]
     ExistingPasswordFound(String, PathBuf),
     #[error("The keychain lacks a password for the already existing \"{0}\" volume on disk `{1}`, consider removing the volume with `diskutil apfs deleteVolume \"{0}\"` (if you receive error -69888, you may need to run `launchctl bootout system/org.nixos.darwin-store` and `launchctl bootout system/org.nixos.nix-daemon` first)")]
     MissingPasswordForExistingVolume(String, PathBuf),