diff --git a/devtools.php b/devtools.php
index 58aa543..a826b4a 100755
--- a/devtools.php
+++ b/devtools.php
@@ -324,6 +324,24 @@ function getIcon(string $file)
 		</a>
 	<?php
 	}
+	elseif($type == "psm-sdk-doc")
+	{
+	?>
+	<a href="/psm-sdk-doc/en" class="devtool" id="sdkdocen">
+		<img src="/img/docs.png" width="128" height="128" class="bubble">
+		<span id="textContent">
+			English SDK Documentation
+		</span>
+	</a>
+
+	<a href="/psm-sdk-doc/jp" class="devtool" id="sdkdocjp">
+		<img src="/img/docs.png" width="128" height="128" class="bubble">
+		<span id="textContent">
+			Japanese SDK Documentation
+		</span>
+	</a>
+	<?php
+	}
 	else
 	{
 		$dirlist = glob($type.'/*');
@@ -335,6 +353,17 @@ function getIcon(string $file)
 				</span>
 			</a>
 		<?php }
+		
+		if($type == "psm-docs"){ // append psm-sdk-doc to result
+			?>
+			<a href="?type=psm-sdk-doc" class="devtool" id="sdkdoc">
+				<img src="/img/docs.png" width="128" height="128" class="bubble">
+				<span id="textContent">
+					SDK Documentation
+				</span>
+			</a>
+			<?php
+		}
 	}
 	?>
 </div>