diff --git a/report.php b/report.php
index 0b764b8a..71ab5bf1 100644
--- a/report.php
+++ b/report.php
@@ -14,6 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+// Run for max 5 minutes before time-out.
+ini_set('max_execution_time', '300');
+
 require_once("../../config.php");
 require_once($CFG->dirroot.'/mod/questionnaire/questionnaire.class.php');