diff --git a/block/flickr_block.module b/block/flickr_block.module
index 4769567..2fe11c5 100644
--- a/block/flickr_block.module
+++ b/block/flickr_block.module
@@ -39,6 +39,9 @@ function flickr_block_info() {
 
   $blocks[10]['info'] = t("Random photos from a Flickr group");
   $blocks[11]['info'] = t("Random photos with a specific tag from a Flickr user");
+  for ($i = 0; $i < 12; $i++) {
+    $blocks[$i]['cache'] = DRUPAL_CACHE_GLOBAL;
+  }
   return $blocks;
 }