diff --git a/pkgs/by-name/su/surge-XT/clap-option.diff b/pkgs/by-name/su/surge-xt/clap-option.diff
similarity index 100%
rename from pkgs/by-name/su/surge-XT/clap-option.diff
rename to pkgs/by-name/su/surge-xt/clap-option.diff
diff --git a/pkgs/by-name/su/surge-XT/package.nix b/pkgs/by-name/su/surge-xt/package.nix
similarity index 99%
rename from pkgs/by-name/su/surge-XT/package.nix
rename to pkgs/by-name/su/surge-xt/package.nix
index 0b4ce473dbc9..3a2e22cb5574 100644
--- a/pkgs/by-name/su/surge-XT/package.nix
+++ b/pkgs/by-name/su/surge-xt/package.nix
@@ -22,7 +22,7 @@
 }:
 
 stdenv.mkDerivation (finalAttrs: {
-  pname = "surge-XT";
+  pname = "surge-xt";
   version = "1.3.4";
 
   src = fetchFromGitHub {
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index c8733d1c47b9..7b60c931094c 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1805,6 +1805,7 @@ mapAliases {
   sumalibs = throw "'sumalibs' has been removed as it was archived upstream and broken with GCC 14"; # Added 2025-06-14
   sumatra = throw "'sumatra' has been removed as it was archived upstream and broken with GCC 14"; # Added 2025-06-14
   sumneko-lua-language-server = throw "'sumneko-lua-language-server' has been renamed to/replaced by 'lua-language-server'"; # Converted to throw 2025-10-27
+  surge-XT = warnAlias "'surge-XT' has been renamed to 'surge-xt'" surge-xt; # Added 2026-02-12
   svt-av1-psy = warnAlias "'svt-av1-psy' has been replaced by 'svt-av1-psyex'" svt-av1-psyex; # Added 2026-01-10
   swig4 = throw "'swig4' has been renamed to/replaced by 'swig'"; # Converted to throw 2025-10-27
   swiProlog = throw "'swiProlog' has been renamed to/replaced by 'swi-prolog'"; # Converted to throw 2025-10-27