diff --git a/.gitignore b/.gitignore
index 60a0e1b6b2..8ee4eb5ff1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,6 +49,7 @@ build/compile_commands.json
 build/dfhack_setarch.txt
 build/ImportExecutables.cmake
 build/Testing
+build/_deps
 
 # Python binding binaries
 *.pyc