diff --git a/nixos/modules/config/swap.nix b/nixos/modules/config/swap.nix
index fa09b61ddec0..c99fd3ddf162 100644
--- a/nixos/modules/config/swap.nix
+++ b/nixos/modules/config/swap.nix
@@ -106,6 +106,11 @@ let
           description = "Path of the device or swap file.";
         };
 
+        isDevice = mkOption {
+          default = lib.substring 0 5 config.device == "/dev/";
+          internal = true;
+        };
+
         label = mkOption {
           example = "swap";
           type = types.str;
@@ -329,6 +334,7 @@ in
                   )
                 } ${sw.device} ${sw.deviceName}
                 mkswap ${sw.realDevice}
+                ${lib.optionalString sw.isDevice "udevadm trigger ${sw.realDevice}"}
               ''}
             '';
             enableStrictShellChecks = true;