diff --git a/modules/monitoring/library/Monitoring/Backend/Ido/Query/HostdowntimestarthistoryQuery.php b/modules/monitoring/library/Monitoring/Backend/Ido/Query/HostdowntimestarthistoryQuery.php
index 831df6c81..5d0517884 100644
--- a/modules/monitoring/library/Monitoring/Backend/Ido/Query/HostdowntimestarthistoryQuery.php
+++ b/modules/monitoring/library/Monitoring/Backend/Ido/Query/HostdowntimestarthistoryQuery.php
@@ -96,7 +96,7 @@ class HostdowntimestarthistoryQuery extends IdoQuery
             array()
         );
 
-        if (@func_get_arg(0) === false) {
+        if (func_num_args() === 0 || func_get_arg(0) === false) {
             $this->select->where(
                 "hdh.actual_start_time > '1970-01-02 00:00:00'"
             );
diff --git a/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php b/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
index 6ed081ef7..932d854a0 100644
--- a/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
+++ b/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
@@ -97,7 +97,7 @@ class ServicedowntimestarthistoryQuery extends IdoQuery
             array()
         );
 
-        if (@func_get_arg(0) === false) {
+        if (func_num_args() === 0 || func_get_arg(0) === false) {
             $this->select->where(
                 "sdh.actual_start_time > '1970-01-02 00:00:00'"
             );