diff --git a/.gitignore b/.gitignore
index fa38895..8fd42bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,7 @@ doc/*.pdf
 *.whl
 
 # Build artifacts:
-build/
\ No newline at end of file
+build/
+
+# C language Server cache:
+.ccls-cache