diff --git a/app/src/main/java/org/shadowice/flocke/andotp/Utilities/EntryThumbnail.java b/app/src/main/java/org/shadowice/flocke/andotp/Utilities/EntryThumbnail.java
index dd27bb50..8b2ab2eb 100644
--- a/app/src/main/java/org/shadowice/flocke/andotp/Utilities/EntryThumbnail.java
+++ b/app/src/main/java/org/shadowice/flocke/andotp/Utilities/EntryThumbnail.java
@@ -217,6 +217,7 @@ public class EntryThumbnail {
         Mapbox(R.drawable.thumb_mapbox),
         Mastodon(R.drawable.thumb_mastodon),
         Matomo(R.drawable.thumb_matomo),
+        Mattermost(R.drawable.thumb_mattermost),
         Mediawiki(R.mipmap.thumb_mediawiki, AssetType.Bitmap),
         Mega(R.drawable.thumb_mega),
         MercadoLibre(R.drawable.thumb_mercadolibre),
diff --git a/app/src/main/res/drawable/thumb_mattermost.xml b/app/src/main/res/drawable/thumb_mattermost.xml
new file mode 100644
index 00000000..6af63e1f
--- /dev/null
+++ b/app/src/main/res/drawable/thumb_mattermost.xml
@@ -0,0 +1,21 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="666.6667dp"
+    android:height="666.6533dp"
+    android:viewportWidth="666.6667"
+    android:viewportHeight="666.6533">
+  <path
+      android:pathData="m529.212,63.615 l3.508,70.751C590.08,197.731 612.719,287.471 584.167,371.812 541.545,497.716 401.004,563.9 270.26,519.639 139.515,475.379 68.076,337.433 110.697,211.531 139.344,126.908 212.228,69.265 296.64,54.001l45.607,-53.887C199.959,-3.736 65.717,84.584 17.686,226.465 -41.328,400.793 52.152,589.953 226.479,648.967 400.807,707.98 589.967,614.501 648.98,440.175c47.955,-141.656 -4.783,-293.104 -119.768,-376.56"
+      android:fillColor="#3957af"
+      android:strokeColor="#00000000"
+      android:fillType="evenOdd"/>
+  <path
+      android:pathData="m447.496,272.379 l-2.413,-98.908 -1.937,-56.913 -1.312,-49.307c0,-0 0.273,-23.776 -0.557,-29.363 -0.175,-1.176 -0.544,-2.133 -0.983,-2.968l-0.168,-0.348 -0.189,-0.307c-0.911,-1.569 -2.345,-2.844 -4.2,-3.472 -1.897,-0.643 -3.859,-0.484 -5.564,0.253l-0.105,0.039c-0.203,0.092 -0.397,0.195 -0.591,0.301 -0.808,0.393 -1.629,0.903 -2.432,1.683 -4.055,3.933 -18.279,22.987 -18.279,22.987L377.772,94.427 341.661,138.461 279.664,215.563c0,-0 -28.451,35.508 -22.164,79.215 6.287,43.707 38.78,64.999 63.989,73.532 25.207,8.535 63.952,11.359 95.496,-19.543 31.543,-30.9 30.511,-76.388 30.511,-76.388"
+      android:fillColor="#3957af"
+      android:strokeColor="#00000000"
+      android:fillType="evenOdd"/>
+  <path
+      android:pathData="m665.539,666.653l-4.84,-0c-0.579,-0 -1.085,-0.469 -1.121,-1.048L657.919,644.368 651.089,659.718c-0.18,0.433 -0.575,0.687 -1.049,0.687l-4.332,-0c-0.433,-0 -0.832,-0.254 -1.049,-0.687L637.872,644.293 636.244,665.605C636.207,666.184 635.703,666.653 635.123,666.653l-4.876,-0c-0.321,-0 -0.611,-0.144 -0.827,-0.36 -0.216,-0.254 -0.327,-0.544 -0.327,-0.867l2.817,-34.712c0.036,-0.58 0.543,-1.048 1.121,-1.048l5.128,-0c0.469,-0 0.865,0.289 1.048,0.686l7.947,18.78c0.253,0.58 0.505,1.229 0.721,1.842 0.253,-0.613 0.469,-1.263 0.721,-1.842l7.984,-18.78c0.179,-0.397 0.579,-0.686 1.048,-0.686l5.091,-0c0.616,-0 1.123,0.468 1.159,1.048L666.659,665.427c0.039,0.322 -0.072,0.613 -0.288,0.867C666.153,666.509 665.865,666.653 665.539,666.653m-52.196,-0l-4.875,-0c-0.649,-0 -1.153,-0.505 -1.153,-1.156L607.315,636.167l-10.727,-0c-0.655,-0 -1.159,-0.506 -1.159,-1.119l0,-4.225c0,-0.651 0.504,-1.156 1.159,-1.156l28.64,-0c0.616,-0 1.153,0.505 1.153,1.156l0,4.225c0,0.613 -0.537,1.119 -1.153,1.119l-10.763,-0L614.465,665.497C614.465,666.148 613.96,666.653 613.343,666.653"
+      android:fillColor="#a0bde7"
+      android:strokeColor="#00000000"
+      android:fillType="nonZero"/>
+</vector>