diff --git a/nixos/modules/services/monitoring/collectd.nix b/nixos/modules/services/monitoring/collectd.nix
index 3c3d83c66ed0..01c6fb817669 100644
--- a/nixos/modules/services/monitoring/collectd.nix
+++ b/nixos/modules/services/monitoring/collectd.nix
@@ -9,7 +9,7 @@ let
     BaseDir "${cfg.dataDir}"
     PIDFile "${cfg.pidFile}"
     AutoLoadPlugin ${if cfg.autoLoadPlugin then "true" else "false"}
-    Hostname ${config.networking.hostName}
+    Hostname "${config.networking.hostName}"
 
     LoadPlugin syslog
     <Plugin "syslog">