diff --git a/modules/services/swayidle.nix b/modules/services/swayidle.nix
index 6e8b55cb8..7d1fa455b 100644
--- a/modules/services/swayidle.nix
+++ b/modules/services/swayidle.nix
@@ -121,6 +121,7 @@ in {
 
       Service = {
         Type = "simple";
+        Restart = "always";
         # swayidle executes commands using "sh -c", so the PATH needs to contain a shell.
         Environment = [ "PATH=${makeBinPath [ pkgs.bash ]}" ];
         ExecStart =
diff --git a/tests/modules/services/swayidle/basic-configuration.nix b/tests/modules/services/swayidle/basic-configuration.nix
index caa06ae16..96d983209 100644
--- a/tests/modules/services/swayidle/basic-configuration.nix
+++ b/tests/modules/services/swayidle/basic-configuration.nix
@@ -46,6 +46,7 @@
 
     assertFileExists $serviceFile
     assertFileRegex $serviceFile 'ExecStart=.*/bin/swayidle ${expectedArgs}'
+    assertFileRegex $serviceFile 'Restart=always'
     assertFileRegex $serviceFile 'Environment=.*PATH=${
       lib.makeBinPath [ pkgs.bash ]
     }'