diff --git a/.gitignore b/.gitignore
index e1c0d400..13c0afb7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,3 @@
-# flake.nix builds source in this tree.
-# must not commit flake.lock that would need hash from this repo
-flake.lock
 # clangd working space (see emacs+lsp)
 .cache
 # typical cmake build directory (source-tree-nephew)