diff --git a/act-runner-config.yaml b/act-runner-config.yaml
deleted file mode 100644
index 94aff0d..0000000
--- a/act-runner-config.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-# act_runner auto-detects that it has its own /var/run/docker.sock mounted (see
-# docker-compose.yml) and passes it through to job containers itself — no explicit
-# options needed here. This file is kept (even near-empty) so CONFIG_FILE has a
-# stable target if runner-level settings are needed later.
diff --git a/docker-compose.yml b/docker-compose.yml
index 19c6e60..f54ead5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -73,11 +73,14 @@ services:
       # catthehacker/ubuntu:act-latest is the standard job-container image for
       # act/act_runner — includes git + docker CLI, which job steps need.
       GITEA_RUNNER_LABELS: docker:docker://catthehacker/ubuntu:act-latest
-      CONFIG_FILE: /etc/act_runner/config.yaml
+      # No custom config.yaml: act_runner already auto-detects its own bind-mounted
+      # docker.sock and passes it through to job containers with no extra config needed.
+      # (A relative-path bind-mounted config file here would also be unreliable under
+      # Portainer's git-stack deploy — its cloned checkout doesn't persist for the
+      # container's runtime, so the mount source can silently resolve to nothing.)
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - act_runner_data:/data
-      - ./act-runner-config.yaml:/etc/act_runner/config.yaml:ro
     networks:
       - web