diff --git a/modules/services/ssh.nix b/modules/services/ssh.nix
index a60a9210..4617d550 100644
--- a/modules/services/ssh.nix
+++ b/modules/services/ssh.nix
@@ -90,7 +90,7 @@ in {
                             }
                             ${
                                 if value.publicKey != null then
-                                    "IdentityFile    ${pkgs.writeFile "${name}.pub" value.publicKey}"
+                                    "IdentityFile    ${pkgs.writeText "${name}.pub" value.publicKey}"
                                     else ""
                             }
                     '') cfg.agent.hostAliases)}