diff --git a/.gitignore b/.gitignore
index 1c6e2034..7051a9c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 /nextpnr-fpga_interchange*
 /nextpnr-gowin*
 /nextpnr-machxo2*
+.cache
 cmake-build-*/
 Makefile
 cmake_install.cmake