diff --git a/.dockerignore b/.dockerignore
index e0a42b3..fa73c85 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -37,6 +37,8 @@
 
 # Generated on crash by the VM
 erl_crash.dump
+core
+core.*
 
 # Static artifacts - These should be fetched and built inside the Docker image
 # https://phoenix.hexdocs.pm/Mix.Tasks.Phx.Gen.Release.html#module-docker
diff --git a/scripts/quality.sh b/scripts/quality.sh
index ef74058..efa6c86 100755
--- a/scripts/quality.sh
+++ b/scripts/quality.sh
@@ -74,6 +74,10 @@ docker run --rm \
   --workdir /repo \
   "$ACTIONLINT_IMAGE"
 
+echo "Checking crash dumps are excluded from the Docker build context"
+grep -Fx 'core' .dockerignore >/dev/null
+grep -Fx 'core.*' .dockerignore >/dev/null
+
 echo "Rendering every Docker Compose profile"
 docker compose --env-file .env.example -f compose.yaml config --quiet
 docker compose --env-file .env.example -f compose.yaml config --format json |