diff --git a/nixos/modules/hardware/pcmcia.nix b/nixos/modules/hardware/pcmcia.nix
index 9f289b029463..955a039a3096 100644
--- a/nixos/modules/hardware/pcmcia.nix
+++ b/nixos/modules/hardware/pcmcia.nix
@@ -5,7 +5,7 @@
   ...
 }:
 let
-  pcmciaUtils = pkgs.pcmciaUtils.overrideAttrs {
+  pcmciautils = pkgs.pcmciautils.overrideAttrs {
     inherit (config.hardware.pcmcia) firmware config;
   };
 in
@@ -48,9 +48,9 @@ in
 
     boot.kernelModules = [ "pcmcia" ];
 
-    services.udev.packages = [ pcmciaUtils ];
+    services.udev.packages = [ pcmciautils ];
 
-    environment.systemPackages = [ pcmciaUtils ];
+    environment.systemPackages = [ pcmciautils ];
 
   };
 
diff --git a/pkgs/by-name/pc/pcmciaUtils/package.nix b/pkgs/by-name/pc/pcmciautils/package.nix
similarity index 86%
rename from pkgs/by-name/pc/pcmciaUtils/package.nix
rename to pkgs/by-name/pc/pcmciautils/package.nix
index 9bdd4c1ecc11..4d6f8f0287da 100644
--- a/pkgs/by-name/pc/pcmciaUtils/package.nix
+++ b/pkgs/by-name/pc/pcmciautils/package.nix
@@ -9,8 +9,9 @@
   kmod,
   udev,
   udevCheckHook,
-  firmware ? config.pcmciaUtils.firmware or [ ], # Special pcmcia cards.
-  configOpts ? config.pcmciaUtils.config or null, # Special hardware (map memory & port & irq)
+  # config.pcmciaUtils as backwards compat for renamed package
+  firmware ? config.pcmcia-utils.firmware or config.pcmciaUtils.firmware or [ ], # Special pcmcia cards.
+  configOpts ? config.pcmcia-utils.config or config.pcmciaUtils.config or null, # Special hardware (map memory & port & irq)
 }: # used to generate postInstall script.
 
 # FIXME: should add an option to choose between hotplug and udev.
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 3850a8d8869e..f3fd90ee0159 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1507,6 +1507,7 @@ mapAliases {
   patchelfStable = throw "'patchelfStable' has been renamed to/replaced by 'patchelf'"; # Converted to throw 2025-10-27
   path-of-building = lib.warnOnInstantiate "'path-of-building' has been replaced by 'rusty-path-of-building'" rusty-path-of-building; # Added 2025-10-30
   paup = throw "'paup' has been renamed to/replaced by 'paup-cli'"; # Converted to throw 2025-10-27
+  pcmciaUtils = warnAlias "'pcmciaUtils' has been renamed to 'pcmciautils'" pcmciautils; # Added 2026-02-12
   pcp = throw "'pcp' has been removed because the upstream repo was archived and it hasn't been updated since 2021"; # Added 2025-09-23
   pcre16 = throw "'pcre16' has been removed because it is obsolete. Consider migrating to 'pcre2' instead."; # Added 2025-05-29
   pcsctools = throw "'pcsctools' has been renamed to/replaced by 'pcsc-tools'"; # Converted to throw 2025-10-27