diff --git a/.gitignore b/.gitignore
index 5dae4342984..b3d030e5178 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,3 +38,5 @@ projects/*
 !projects/Makefile
 # Clang, which is tracked independently.
 tools/clang
+# LLDB, which is tracked independently.
+tools/lldb