diff --git a/modules/programs/neomutt.nix b/modules/programs/neomutt.nix
index 562763bdd..b3e928183 100644
--- a/modules/programs/neomutt.nix
+++ b/modules/programs/neomutt.nix
@@ -223,9 +223,11 @@ let
 
       # Extra configuration
       ${account.neomutt.extraConfig}
-    '' + optionalString (account.signature.showSignature != "none") ''
+    '' + (if (account.signature.showSignature == "none") then ''
+      unset signature
+    '' else ''
       set signature = ${pkgs.writeText "signature.txt" account.signature.text}
-    '' + optionalString account.notmuch.enable (notmuchSection account);
+    '') + optionalString account.notmuch.enable (notmuchSection account);
 
 in {
   options = {
diff --git a/tests/modules/programs/neomutt/hm-example.com-expected b/tests/modules/programs/neomutt/hm-example.com-expected
index 6c96f61f4..74fbf6b1a 100644
--- a/tests/modules/programs/neomutt/hm-example.com-expected
+++ b/tests/modules/programs/neomutt/hm-example.com-expected
@@ -31,6 +31,7 @@ set trash='+Trash'
 # Extra configuration
 color status cyan default
 
+unset signature
 # notmuch section
 set nm_default_uri = "notmuch:///home/hm-user/Mail"
 virtual-mailboxes "My INBOX" "notmuch://?query=tag:inbox"
diff --git a/tests/modules/programs/neomutt/hm-example.com-gpg-expected.conf b/tests/modules/programs/neomutt/hm-example.com-gpg-expected.conf
index f7763dbe6..8c5c10439 100644
--- a/tests/modules/programs/neomutt/hm-example.com-gpg-expected.conf
+++ b/tests/modules/programs/neomutt/hm-example.com-gpg-expected.conf
@@ -30,3 +30,4 @@ set trash='+Trash'
 
 # Extra configuration
 
+unset signature
diff --git a/tests/modules/programs/neomutt/hm-example.com-msmtp-expected.conf b/tests/modules/programs/neomutt/hm-example.com-msmtp-expected.conf
index d2e2f3eee..8ccd3629a 100644
--- a/tests/modules/programs/neomutt/hm-example.com-msmtp-expected.conf
+++ b/tests/modules/programs/neomutt/hm-example.com-msmtp-expected.conf
@@ -30,3 +30,4 @@ set trash='+Trash'
 # Extra configuration
 color status cyan default
 
+unset signature
diff --git a/tests/modules/programs/neomutt/hm-example.com-no-folder-change-expected.conf b/tests/modules/programs/neomutt/hm-example.com-no-folder-change-expected.conf
index 03ea3b31a..22fcf7884 100644
--- a/tests/modules/programs/neomutt/hm-example.com-no-folder-change-expected.conf
+++ b/tests/modules/programs/neomutt/hm-example.com-no-folder-change-expected.conf
@@ -28,3 +28,4 @@ set trash='+Trash'
 
 # Extra configuration
 
+unset signature