1 files changed, 4 insertions, 0 deletions
diff --git a/src/nix/flake.cc b/src/nix/flake.cc
index 64fcfc000..9055b07eb 100644
--- a/src/nix/flake.cc
+++ b/src/nix/flake.cc
@@ -84,6 +84,7 @@ struct CmdFlakeUpdate : FlakeCommand
 
         lockFlags.recreateLockFile = true;
         lockFlags.writeLockFile = true;
+        lockFlags.applyNixConfig = true;
 
         lockFlake();
     }
@@ -114,6 +115,7 @@ struct CmdFlakeLock : FlakeCommand
         settings.tarballTtl = 0;
 
         lockFlags.writeLockFile = true;
+        lockFlags.applyNixConfig = true;
 
         lockFlake();
     }
@@ -270,6 +272,8 @@ struct CmdFlakeCheck : FlakeCommand
         settings.readOnlyMode = !build;
 
         auto state = getEvalState();
+
+        lockFlags.applyNixConfig = true;
         auto flake = lockFlake();
 
         bool hasErrors = false;