diff --git a/includes/module.inc b/includes/module.inc
index d932f07..fa2ec70 100644
--- a/includes/module.inc
+++ b/includes/module.inc
@@ -806,7 +806,7 @@ function module_implements_write_cache() {
   // Check whether we need to write the cache. We do not want to cache hooks
   // which are only invoked on HTTP POST requests since these do not need to be
   // optimized as tightly, and not doing so keeps the cache entry smaller.
-  if (isset($implementations['#write_cache']) && ($_SERVER['REQUEST_METHOD'] == 'GET' || $_SERVER['REQUEST_METHOD'] == 'HEAD')) {
+  if (isset($implementations['#write_cache'])) {
     unset($implementations['#write_cache']);
     cache_set('module_implements', $implementations, 'cache_bootstrap');
   }