diff --git a/lib/setup.php b/lib/setup.php
index 094ad4399e8..6a12ff0473b 100644
--- a/lib/setup.php
+++ b/lib/setup.php
@@ -22,7 +22,7 @@
 
 // Default editing time for discussions and the like (in seconds)
 
-    $CFG->maxeditingtime = 10;
+    $CFG->maxeditingtime = 1800;
 
 // Location of standard files