7 files changed, 8 insertions, 8 deletions
diff --git a/nixos/modules/services/backup/znapzend.nix b/nixos/modules/services/backup/znapzend.nix
index 0ca71b413ce..debb2a39705 100644
--- a/nixos/modules/services/backup/znapzend.nix
+++ b/nixos/modules/services/backup/znapzend.nix
@@ -279,7 +279,7 @@ let
     src_plan = plan;
     tsformat = timestampFormat;
     zend_delay = toString sendDelay;
-  } // fold (a: b: a // b) {} (
+  } // foldr (a: b: a // b) {} (
     map mkDestAttrs (builtins.attrValues destinations)
   );
 
diff --git a/nixos/modules/services/mail/postfix.nix b/nixos/modules/services/mail/postfix.nix
index 1dcdcab8d48..8fd3ef18c0d 100644
--- a/nixos/modules/services/mail/postfix.nix
+++ b/nixos/modules/services/mail/postfix.nix
@@ -193,7 +193,7 @@ let
       # We need to handle the last column specially here, because it's
       # open-ended (command + args).
       lines = [ labels labelDefaults ] ++ (map (l: init l ++ [""]) masterCf);
-    in fold foldLine (genList (const 0) (length labels)) lines;
+    in foldr foldLine (genList (const 0) (length labels)) lines;
 
     # Pad a string with spaces from the right (opposite of fixedWidthString).
     pad = width: str: let
@@ -202,7 +202,7 @@ let
     in str + optionalString (padWidth > 0) padding;
 
     # It's + 2 here, because that's the amount of spacing between columns.
-    fullWidth = fold (width: acc: acc + width + 2) 0 maxWidths;
+    fullWidth = foldr (width: acc: acc + width + 2) 0 maxWidths;
 
     formatLine = line: concatStringsSep "  " (zipListsWith pad maxWidths line);
 
diff --git a/nixos/modules/services/networking/autossh.nix b/nixos/modules/services/networking/autossh.nix
index a8d9a027e9f..245f2bfc2cf 100644
--- a/nixos/modules/services/networking/autossh.nix
+++ b/nixos/modules/services/networking/autossh.nix
@@ -79,7 +79,7 @@ in
 
     systemd.services =
 
-      lib.fold ( s : acc : acc //
+      lib.foldr ( s : acc : acc //
         {
           "autossh-${s.name}" =
             let
diff --git a/nixos/modules/services/networking/nylon.nix b/nixos/modules/services/networking/nylon.nix
index bfc358cb12f..a20fa615af8 100644
--- a/nixos/modules/services/networking/nylon.nix
+++ b/nixos/modules/services/networking/nylon.nix
@@ -160,7 +160,7 @@ in
 
     users.groups.nylon.gid = config.ids.gids.nylon;
 
-    systemd.services = fold (a: b: a // b) {} nylonUnits;
+    systemd.services = foldr (a: b: a // b) {} nylonUnits;
 
   };
 }
diff --git a/nixos/modules/services/networking/quicktun.nix b/nixos/modules/services/networking/quicktun.nix
index fb783c83646..438e67d5ebb 100644
--- a/nixos/modules/services/networking/quicktun.nix
+++ b/nixos/modules/services/networking/quicktun.nix
@@ -87,7 +87,7 @@ with lib;
   };
 
   config = mkIf (cfg != []) {
-    systemd.services = fold (a: b: a // b) {} (
+    systemd.services = foldr (a: b: a // b) {} (
       mapAttrsToList (name: qtcfg: {
         "quicktun-${name}" = {
           wantedBy = [ "multi-user.target" ];
diff --git a/nixos/modules/services/networking/tinc.nix b/nixos/modules/services/networking/tinc.nix
index b6afd83a9ab..9e433ad1a98 100644
--- a/nixos/modules/services/networking/tinc.nix
+++ b/nixos/modules/services/networking/tinc.nix
@@ -351,7 +351,7 @@ in
 
   config = mkIf (cfg.networks != { }) {
 
-    environment.etc = fold (a: b: a // b) { }
+    environment.etc = foldr (a: b: a // b) { }
       (flip mapAttrsToList cfg.networks (network: data:
         flip mapAttrs' data.hosts (host: text: nameValuePair
           ("tinc/${network}/hosts/${host}")
diff --git a/nixos/modules/services/networking/wakeonlan.nix b/nixos/modules/services/networking/wakeonlan.nix
index 35ff67937fc..f41b6ec2740 100644
--- a/nixos/modules/services/networking/wakeonlan.nix
+++ b/nixos/modules/services/networking/wakeonlan.nix
@@ -19,7 +19,7 @@ let
     ${ethtool} -s ${interface} ${methodParameter {inherit method password;}}
   '';
 
-  concatStrings = fold (x: y: x + y) "";
+  concatStrings = foldr (x: y: x + y) "";
   lines = concatStrings (map (l: line l) interfaces);
 
 in