diff --git a/dev/tasks/python-wheels/github.osx.yml b/dev/tasks/python-wheels/github.osx.yml
index e7b6d7898103b..cf99c84c60bfd 100644
--- a/dev/tasks/python-wheels/github.osx.yml
+++ b/dev/tasks/python-wheels/github.osx.yml
@@ -17,8 +17,7 @@
 {% import 'macros.jinja' as macros with context %}
 
 {{ macros.github_header() }}
-
-env:
+# env: is generated by macros.github_header()
   ARROW_JEMALLOC: "{{ arrow_jemalloc }}"
   CC: "clang"
   CMAKE_BUILD_TYPE: release
diff --git a/dev/tasks/verify-rc/github.macos.yml b/dev/tasks/verify-rc/github.macos.yml
index 642cee2bb9aec..8963954dba49d 100644
--- a/dev/tasks/verify-rc/github.macos.yml
+++ b/dev/tasks/verify-rc/github.macos.yml
@@ -20,8 +20,7 @@
 {{ macros.github_header() }}
 
 {% set use_conda = use_conda|default(False) %}
-
-env:
+# env: is generated by macros.github_header()
   # Current oldest supported version according to https://endoflife.date/macos
   MACOSX_DEPLOYMENT_TARGET: "10.15"