diff --git a/nixos/modules/services/display-managers/gdm.nix b/nixos/modules/services/display-managers/gdm.nix
index c6d5c9337e10..ea912d70b0af 100644
--- a/nixos/modules/services/display-managers/gdm.nix
+++ b/nixos/modules/services/display-managers/gdm.nix
@@ -421,7 +421,7 @@ in
             {
               name = "unix";
               control = "sufficient";
-              modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+              modulePath = config.security.pam.pam_unixModulePath;
             }
           ];
 
@@ -567,7 +567,7 @@ in
             {
               name = "unix";
               control = "sufficient";
-              modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+              modulePath = config.security.pam.pam_unixModulePath;
             }
           ];
 
@@ -575,7 +575,7 @@ in
             {
               name = "unix";
               control = "requisite";
-              modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+              modulePath = config.security.pam.pam_unixModulePath;
               settings.nullok = true;
               settings.yescrypt = true;
             }
diff --git a/nixos/modules/services/display-managers/plasma-login-manager.nix b/nixos/modules/services/display-managers/plasma-login-manager.nix
index 65a16671bda0..b0d2fb01b76e 100644
--- a/nixos/modules/services/display-managers/plasma-login-manager.nix
+++ b/nixos/modules/services/display-managers/plasma-login-manager.nix
@@ -201,7 +201,7 @@ in
               # Setup session
               name = "unix";
               control = "required";
-              modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+              modulePath = config.security.pam.pam_unixModulePath;
             }
             {
               name = "systemd";
diff --git a/nixos/modules/services/display-managers/sddm.nix b/nixos/modules/services/display-managers/sddm.nix
index 38725bf280f5..11a1089b4598 100644
--- a/nixos/modules/services/display-managers/sddm.nix
+++ b/nixos/modules/services/display-managers/sddm.nix
@@ -442,7 +442,7 @@ in
             {
               name = "unix";
               control = "sufficient";
-              modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+              modulePath = config.security.pam.pam_unixModulePath;
             }
           ];
 
diff --git a/nixos/modules/services/ttys/kmscon.nix b/nixos/modules/services/ttys/kmscon.nix
index 931fac1123c6..c52434c46a11 100644
--- a/nixos/modules/services/ttys/kmscon.nix
+++ b/nixos/modules/services/ttys/kmscon.nix
@@ -214,7 +214,7 @@ in
           {
             name = "unix";
             control = "required";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
         ];
         session = utils.pam.autoOrderRules [
@@ -230,7 +230,7 @@ in
           {
             name = "unix";
             control = "required";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
           {
             name = "systemd";
diff --git a/nixos/modules/services/wayland/cage.nix b/nixos/modules/services/wayland/cage.nix
index 006520ea9b63..a084de9b7383 100644
--- a/nixos/modules/services/wayland/cage.nix
+++ b/nixos/modules/services/wayland/cage.nix
@@ -113,7 +113,7 @@ in
           {
             name = "unix";
             control = "required";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
             settings.nullok = true;
           }
         ];
@@ -121,14 +121,14 @@ in
           {
             name = "unix";
             control = "required";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
         ];
         session = utils.pam.autoOrderRules [
           {
             name = "unix";
             control = "required";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
           {
             name = "env";
diff --git a/nixos/modules/services/x11/display-managers/lightdm.nix b/nixos/modules/services/x11/display-managers/lightdm.nix
index 699a9a9a07f3..3561d4877451 100644
--- a/nixos/modules/services/x11/display-managers/lightdm.nix
+++ b/nixos/modules/services/x11/display-managers/lightdm.nix
@@ -362,7 +362,7 @@ in
           {
             name = "unix";
             control = "sufficient";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
         ];
 
@@ -446,7 +446,7 @@ in
           {
             name = "unix";
             control = "sufficient";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
           }
         ];
 
@@ -454,7 +454,7 @@ in
           {
             name = "unix";
             control = "requisite";
-            modulePath = "${config.security.pam.package}/lib/security/pam_unix.so";
+            modulePath = config.security.pam.pam_unixModulePath;
             settings.nullok = true;
             settings.yescrypt = true;
           }