diff --git a/modules/bitcoind.nix b/modules/bitcoind.nix
index 9a2a79b..e78ca37 100644
--- a/modules/bitcoind.nix
+++ b/modules/bitcoind.nix
@@ -388,7 +388,10 @@ in {
       } // nbLib.allowLocalIPAddresses;
     };
 
-    users.users.${cfg.user}.group = cfg.group;
+    users.users.${cfg.user} = {
+      isSystemUser = true;
+      group = cfg.group;
+    };
     users.groups.${cfg.group} = {};
     users.groups.bitcoinrpc-public = {};
     nix-bitcoin.operator.groups = [ cfg.group ];
diff --git a/modules/btcpayserver.nix b/modules/btcpayserver.nix
index 1429f9a..4b89add 100644
--- a/modules/btcpayserver.nix
+++ b/modules/btcpayserver.nix
@@ -230,6 +230,7 @@ in {
     }; in self;
 
     users.users.${cfg.nbxplorer.user} = {
+      isSystemUser = true;
       group = cfg.nbxplorer.group;
       extraGroups = [ "bitcoinrpc-public" ]
                     ++ optional cfg.btcpayserver.lbtc cfg.liquidd.group;
@@ -237,6 +238,7 @@ in {
     };
     users.groups.${cfg.nbxplorer.group} = {};
     users.users.${cfg.btcpayserver.user} = {
+      isSystemUser = true;
       group = cfg.btcpayserver.group;
       extraGroups = [ cfg.nbxplorer.group ]
                     ++ optional (cfg.btcpayserver.lightningBackend == "clightning") cfg.clightning.user;
diff --git a/modules/charge-lnd.nix b/modules/charge-lnd.nix
index c926cee..b6cf8aa 100644
--- a/modules/charge-lnd.nix
+++ b/modules/charge-lnd.nix
@@ -133,8 +133,8 @@ in
     };
 
     users.users.${user} = {
-      group = group;
       isSystemUser = true;
+      group = group;
     };
     users.groups.${group} = {};
   };
diff --git a/modules/clightning.nix b/modules/clightning.nix
index 1fbff34..0cadfc3 100644
--- a/modules/clightning.nix
+++ b/modules/clightning.nix
@@ -140,6 +140,7 @@ in {
     };
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       extraGroups = [ "bitcoinrpc-public" ];
     };
diff --git a/modules/electrs.nix b/modules/electrs.nix
index 53a20ad..880cc1a 100644
--- a/modules/electrs.nix
+++ b/modules/electrs.nix
@@ -106,6 +106,7 @@ in {
     };
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       extraGroups = [ "bitcoinrpc-public" ] ++ optionals cfg.high-memory [ bitcoind.user ];
     };
diff --git a/modules/joinmarket.nix b/modules/joinmarket.nix
index bf5bac4..3dcb291 100644
--- a/modules/joinmarket.nix
+++ b/modules/joinmarket.nix
@@ -270,6 +270,7 @@ in {
     };
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       home = cfg.dataDir;
       # Allow access to the tor control socket, needed for payjoin onion service creation
diff --git a/modules/liquid.nix b/modules/liquid.nix
index 215ef5f..7e375a7 100644
--- a/modules/liquid.nix
+++ b/modules/liquid.nix
@@ -240,6 +240,7 @@ in {
     };
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       extraGroups = [ "bitcoinrpc-public" ];
     };
diff --git a/modules/lnd.nix b/modules/lnd.nix
index cf5fa9c..33bbce0 100644
--- a/modules/lnd.nix
+++ b/modules/lnd.nix
@@ -263,6 +263,7 @@ in {
     };
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       extraGroups = [ "bitcoinrpc-public" ];
       home = cfg.dataDir; # lnd creates .lnd dir in HOME
diff --git a/modules/recurring-donations.nix b/modules/recurring-donations.nix
index 68d48ab..377af6d 100644
--- a/modules/recurring-donations.nix
+++ b/modules/recurring-donations.nix
@@ -97,6 +97,7 @@ in {
     };
 
     users.users.recurring-donations = {
+      isSystemUser = true;
       group = "recurring-donations";
       extraGroups = [ config.services.clightning.group ];
     };
diff --git a/modules/spark-wallet.nix b/modules/spark-wallet.nix
index f9947ec..c305337 100644
--- a/modules/spark-wallet.nix
+++ b/modules/spark-wallet.nix
@@ -65,6 +65,7 @@ in {
     services.clightning.enable = true;
 
     users.users.${cfg.user} = {
+      isSystemUser = true;
       group = cfg.group;
       extraGroups = [ config.services.clightning.group ];
     };