diff --git a/windows/threat-protection/windows-defender-atp/api-portal-mapping-windows-defender-advanced-threat-protection.md b/windows/threat-protection/windows-defender-atp/api-portal-mapping-windows-defender-advanced-threat-protection.md
index 8fe86a75b0..3e30ffba59 100644
--- a/windows/threat-protection/windows-defender-atp/api-portal-mapping-windows-defender-advanced-threat-protection.md
+++ b/windows/threat-protection/windows-defender-atp/api-portal-mapping-windows-defender-advanced-threat-protection.md
@@ -28,6 +28,7 @@ Understand what data fields are exposed as part of the alerts API and how they m
 Field numbers match the numbers in the images below.
 
 <table class="tg">
+<table style="table-layout:fixed; width:100%">
   <tr>
     <th class="tg-yw4l">Portal label</th>
     <th class="tg-yw4l">SIEM field name</th>