diff --git a/.gitignore b/.gitignore
index 13c0afb..bc625ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+# emacs project config
+.projectile
 # clangd working space (see emacs+lsp)
 .cache
 # typical cmake build directory (source-tree-nephew)