diff --git a/lib/capistrano/tasks/composer.rake b/lib/capistrano/tasks/composer.rake
index 10df381..c880c64 100644
--- a/lib/capistrano/tasks/composer.rake
+++ b/lib/capistrano/tasks/composer.rake
@@ -11,14 +11,15 @@ namespace :composer do
   task :install_executable do
     on release_roles(fetch(:composer_roles)) do
       within shared_path do
+        composer_php = fetch(:composer_php, :php)
         composer_version = fetch(:composer_version, nil)
         composer_version_option = composer_version ? "-- --version=#{composer_version}" : ""
         if test "[", "!", "-e", "composer.phar", "]"
-          execute :curl, "-s", fetch(:composer_download_url), "|", :php, composer_version_option
+          execute :curl, "-s", fetch(:composer_download_url), "|", composer_php, composer_version_option
         elsif composer_version
-          current_version = capture(:php, "composer.phar", "-V", strip: false)
+          current_version = capture(composer_php, "composer.phar", "-V", strip: false)
           unless current_version.include? "Composer version #{composer_version} "
-            execute :curl, "-s", fetch(:composer_download_url), "|", :php, composer_version_option
+            execute :curl, "-s", fetch(:composer_download_url), "|", composer_php, composer_version_option
           end
         end
       end