diff --git a/.gitignore b/.gitignore
index 06575f6351..b60d23b917 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,6 +39,9 @@ uptime-*.json
 *.last_modified
 # ccls file that can be per directory.
 *.ccls
+# Core files
+core
+core.*
 
 # /
 /Makefile