diff --git a/windows/security/threat-protection/index.md b/windows/security/threat-protection/index.md
index 6f70a85c78..d81a0d9707 100644
--- a/windows/security/threat-protection/index.md
+++ b/windows/security/threat-protection/index.md
@@ -18,7 +18,7 @@ ms.date: 10/04/2018
 <center><h2>Windows Defender ATP</center></h2>
 <table>
 <tr>
-<td><a href="#asr"><center><img src="images/ASR_icon.jpg"> <br><b>Attack surface reduction</b></center></a></td>
+<td><a href="#asr"><center><img src="images/ASR_icon.png"> <br><b>Attack surface reduction</b></center></a></td>
 <td><center><a href="#ngp"><img src="images/ngp_icon.png"><br> <b>Next generation protection</b></a></center></td>
 <td><center><a href="#edr"><img src="images/edr_icon.png"><br> <b>Endpoint detection and response</b></a></center></td>
 <td><center><a href="#ai"><img src="images/AR_icon.png"><br> <b>Automated investigation and remediation</b></a></center></td>