diff --git a/hosts/nixos/porthos/secrets/matrix/sliding-sync-secret.age b/hosts/nixos/porthos/secrets/matrix/sliding-sync-secret.age
new file mode 100644
index 0000000..d375a35
--- /dev/null
+++ b/hosts/nixos/porthos/secrets/matrix/sliding-sync-secret.age
@@ -0,0 +1,9 @@
+age-encryption.org/v1
+-> ssh-ed25519 cKojmg N182xey8TWRVUWTRP16rT0zlhYZNr/pOZVR7YRnlIkk
+HVqAag55z1cKLgjR3WsUj2wvaVjxm169JcDRJGRvCVU
+-> ssh-ed25519 jPowng Dc+aaUTxDsMTY+oOst0SC3ldq1e6zX8F5A5uBL5RHhc
+JWZou6+VaFc5f2OLRIrmFFWg3Er6WSY+TloXU0mP1K8
+-> |9_9Aqh%-grease $ X8Mn|5 aKnl' fl<D{T-
++fAc0cajqxhYWu55HCY
+--- SrmtWXQXGYxNTabSrb5tBRXHnK1F22Qoiy7hKYrrF+0
+ñD·û²:,õn0i�½Àß^ÆŠ`üÔ2Æ#y'ý9ÖñÓÒŽéÿæ�r]ÀØ›¹x“³S=ú°ˆôuJéEÛóc€lH Ê~eÅ‚›ŸKtévo'êv+
\ No newline at end of file
diff --git a/hosts/nixos/porthos/secrets/secrets.nix b/hosts/nixos/porthos/secrets/secrets.nix
index 8eac0f5..ed6c2fd 100644
--- a/hosts/nixos/porthos/secrets/secrets.nix
+++ b/hosts/nixos/porthos/secrets/secrets.nix
@@ -35,6 +35,9 @@ in
     owner = "matrix-synapse";
     publicKeys = all;
   };
+  "matrix/sliding-sync-secret.age" = {
+    publicKeys = all;
+  };
 
   "miniflux/credentials.age".publicKeys = all;