diff --git a/modules/system/system.install b/modules/system/system.install
index 4c567a276..36f1c6f78 100644
--- a/modules/system/system.install
+++ b/modules/system/system.install
@@ -1726,6 +1726,7 @@ function system_schema() {
         'description' => "A serialized array containing information from the module's .info file; keys can include name, description, package, version, core, dependencies, and php.",
         'type' => 'blob',
         'not null' => FALSE,
+        'size' => 'big',
       ),
     ),
     'primary key' => array('filename'),
@@ -3360,6 +3361,18 @@ function system_update_7085() {
   variable_del('block_interest_cohort');
 }
 
+/**
+ * Convert the 'info' column in {system} table to longblob.
+ */
+function system_update_7086() {
+  db_change_field('system', 'info', 'info', array(
+    'description' => "A serialized array containing information from the module's .info file; keys can include name, description, package, version, core, dependencies, and php.",
+    'type' => 'blob',
+    'not null' => FALSE,
+    'size' => 'big',
+  ));
+}
+
 /**
  * @} End of "defgroup updates-7.x-extra".
  * The next series of updates should start at 8000.