diff --git a/.gitignore b/.gitignore
index 174ddb1f5..dbb31434c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,7 @@ regression/log-*
 src/PySMT/opensmt.py
 .ycm_extra_conf.py
 .ycm_extra_conf.pyc
+.ccls-cache/
 authors.txt
 build*/
 delta/parser/__pycache__/