diff --git a/.gitignore b/.gitignore
index 89b52fc6b7..e30b5ce88b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -114,3 +114,5 @@ private.key
 # DDEV files.
 .ddev/providers/platform.yaml
 .ddev/docker-compose.datadog.yaml
+# DDEV sometimes creates this file.
+core