diff --git a/web/zm_actions.php b/web/zm_actions.php
index 33f682e7a..498f1f52d 100644
--- a/web/zm_actions.php
+++ b/web/zm_actions.php
@@ -231,7 +231,14 @@ if ( $action )
 					if ( $new_section_length != $monitor['SectionLength'] ) $changes[] = "SectionLength = '$new_section_length'";
 					if ( $new_frame_skip != $monitor['FrameSkip'] ) $changes[] = "FrameSkip = '$new_frame_skip'";
 					if ( $new_runmode != $monitor['RunMode'] ) $changes[] = "RunMode = '$new_runmode'";
-					if ( join(',',$new_triggers) != $monitor['Triggers'] ) $changes[] = "Triggers = '".join(',',$new_triggers)."'";
+					if ( $new_triggers )
+					{
+						if ( join(',',$new_triggers) != $monitor['Triggers'] ) $changes[] = "Triggers = '".join(',',$new_triggers)."'";
+					}
+					elseif ( $monitor['Triggers'] )
+					{
+						$changes[] = "Triggers = ''";
+					}
 					if ( $new_type != $monitor['Type'] ) $changes[] = "Type = '$new_type'";
 					break;
 				}