diff --git a/src/main/res/values/arrays.xml b/src/main/res/values/arrays.xml
index 68c217e3..aa809e93 100644
--- a/src/main/res/values/arrays.xml
+++ b/src/main/res/values/arrays.xml
@@ -71,7 +71,7 @@
     <item>167.128.0.0/9</item>
     <item>168.128.0.0/9</item>
     <item>171.0.0.0/8</item>
-    <item>172.0.0.0/12</item>
+    <item>172.0.0.0/11</item>
     <item>175.0.0.0/8</item>
     <item>180.0.0.0/8</item>
     <item>182.0.0.0/7</item>