diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 88f9775..c0c76c3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,19 +1,19 @@
 name: build
 
-env:
-  REGISTRY: ghcr.io
-  IMAGE_NAME: cmelab/grits
-  DOCKERFILE: containers/dockerfile_cpu
-
 on:
   push:
     branches: [ main ]
     # Run when container or environment is changed
     paths:
-        - ${{ env.DOCKERFILE }}
+        - containers/dockerfile_cpu
   # Allows workflow to be manually triggered
   workflow_dispatch:
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: cmelab/grits
+  DOCKERFILE: containers/dockerfile_cpu
+
 jobs:
   build:
     runs-on: ubuntu-latest