diff --git a/.gitignore b/.gitignore
index 0ea27c8c8..573fa0005 100644
--- a/.gitignore
+++ b/.gitignore
@@ -126,4 +126,10 @@ GRTAGS
 GSYMS
 GTAGS
 
+# ccls
+/.ccls-cache
+
+# auto-generated compilation database
+compile_commands.json
+
 nix-rust/target