diff --git a/pkgs/applications/networking/mailreaders/himalaya/default.nix b/pkgs/applications/networking/mailreaders/himalaya/default.nix
index fce31144da31..72fb01957b50 100644
--- a/pkgs/applications/networking/mailreaders/himalaya/default.nix
+++ b/pkgs/applications/networking/mailreaders/himalaya/default.nix
@@ -27,10 +27,10 @@ rustPlatform.buildRustPackage rec {
     owner = "soywod";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-HmH4qL70ii8rS8OeUnUxsy9/wMx+f2SBd1AyRqlfKfc=";
+    sha256 = "HmH4qL70ii8rS8OeUnUxsy9/wMx+f2SBd1AyRqlfKfc=";
   };
 
-  cargoSha256 = "sha256-NJFOtWlfKZRLr9vvDvPQjpT4LGMeytk0JFJb0r77bwE=";
+  cargoSha256 = "NJFOtWlfKZRLr9vvDvPQjpT4LGMeytk0JFJb0r77bwE=";
 
   nativeBuildInputs = [ ]
     ++ lib.optional (installManPages || installShellCompletions) installShellFiles
@@ -48,7 +48,7 @@ rustPlatform.buildRustPackage rec {
     ++ lib.optional withNativeTlsVendored "native-tls-vendored"
     ++ lib.optional withImapBackend "imap-backend"
     ++ lib.optional withNotmuchBackend "notmuch-backend"
-'    ++ lib.optional withSmtpSender "smtp-sender";
+    ++ lib.optional withSmtpSender "smtp-sender";
 
   postInstall = lib.optionalString installManPages ''
     mkdir -p $out/man