diff --git a/docker/packager/packager b/docker/packager/packager
index cd2427dec86..c042db2251d 100755
--- a/docker/packager/packager
+++ b/docker/packager/packager
@@ -29,7 +29,13 @@ def pull_image(image_name):
         return False
 
 def build_image(image_name, filepath):
-    subprocess.check_call("docker build --network=host -t {} -f {} .".format(image_name, filepath), shell=True)
+    context = os.path.dirname(filepath)
+    subprocess.check_call(
+        "docker build --network=host -t {} -f {} {}".format(
+            image_name, filepath, context
+        ),
+        shell=True,
+    )
 
 def run_docker_image_with_env(image_name, output, env_variables, ch_root, ccache_dir, docker_image_version):
     env_part = " -e ".join(env_variables)