diff --git a/static/i18n_resources_list.txt b/static/i18n_resources_list.txt
index 56e1dc610..ed782c7b8 100644
--- a/static/i18n_resources_list.txt
+++ b/static/i18n_resources_list.txt
@@ -5,6 +5,7 @@ skin/i18n/de.json
 skin/i18n/dga.json
 skin/i18n/el.json
 skin/i18n/en.json
+skin/i18n/fi.json
 skin/i18n/fr.json
 skin/i18n/he.json
 skin/i18n/hy.json
diff --git a/static/skin/languages.js b/static/skin/languages.js
index 161a7b900..ef65b94dd 100644
--- a/static/skin/languages.js
+++ b/static/skin/languages.js
@@ -14,6 +14,9 @@ const uiLanguages = [
   {
     "English": "en"
   },
+  {
+    "suomi": "fi"
+  },
   {
     "français": "fr"
   },
@@ -23,6 +26,9 @@ const uiLanguages = [
   {
     "Հայերեն": "hy"
   },
+  {
+    "interlingua": "ia"
+  },
   {
     "italiano": "it"
   },
diff --git a/test/server.cpp b/test/server.cpp
index 961ef9a06..b5642719d 100644
--- a/test/server.cpp
+++ b/test/server.cpp
@@ -147,7 +147,7 @@ const ResourceCollection resources200Uncompressible{
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/search_results.css" },
   { STATIC_CONTENT,  "/ROOT%23%3F/skin/search_results.css?cacheid=76d39c84" },
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/languages.js" },
-  { STATIC_CONTENT, "/ROOT%23%3F/skin/languages.js?cacheid=b00b12db" },
+  { STATIC_CONTENT, "/ROOT%23%3F/skin/languages.js?cacheid=648526e1" },
 
   { ZIM_CONTENT,     "/ROOT%23%3F/raw/zimfile/meta/Title" },
   { ZIM_CONTENT,     "/ROOT%23%3F/raw/zimfile/meta/Description" },
@@ -285,7 +285,7 @@ R"EXPECTEDRESULT(      href="/ROOT%23%3F/skin/index.css?cacheid=e4d76d16"
         src: url("/ROOT%23%3F/skin/fonts/Poppins.ttf?cacheid=af705837") format("truetype");
           src: url("/ROOT%23%3F/skin/fonts/Roboto.ttf?cacheid=84d10248") format("truetype");
     <script type="module" src="/ROOT%23%3F/skin/i18n.js?cacheid=2cf0f8c5" defer></script>
-    <script type="text/javascript" src="/ROOT%23%3F/skin/languages.js?cacheid=b00b12db" defer></script>
+    <script type="text/javascript" src="/ROOT%23%3F/skin/languages.js?cacheid=648526e1" defer></script>
     <script src="/ROOT%23%3F/skin/isotope.pkgd.min.js?cacheid=2e48d392" defer></script>
     <script src="/ROOT%23%3F/skin/iso6391To3.js?cacheid=ecde2bb3"></script>
     <script type="text/javascript" src="/ROOT%23%3F/skin/index.js?cacheid=07b06fca" defer></script>
@@ -311,7 +311,7 @@ R"EXPECTEDRESULT(                                <img src="${root}/skin/download
 R"EXPECTEDRESULT(    <link type="text/css" href="./skin/taskbar.css?cacheid=bbdaf425" rel="Stylesheet" />
     <link type="text/css" href="./skin/css/autoComplete.css?cacheid=08951e06" rel="Stylesheet" />
     <script type="module" src="./skin/i18n.js?cacheid=2cf0f8c5" defer></script>
-    <script type="text/javascript" src="./skin/languages.js?cacheid=b00b12db" defer></script>
+    <script type="text/javascript" src="./skin/languages.js?cacheid=648526e1" defer></script>
     <script type="text/javascript" src="./skin/viewer.js?cacheid=b9a574d4" defer></script>
     <script type="text/javascript" src="./skin/autoComplete.min.js?cacheid=1191aaaf"></script>
       const blankPageUrl = root + "/skin/blank.html?cacheid=6b1fa032";
@@ -1056,6 +1056,9 @@ R"EXPECTEDRESPONSE(const uiLanguages = [
   {
     "English": "en"
   },
+  {
+    "suomi": "fi"
+  },
   {
     "français": "fr"
   },
@@ -1065,6 +1068,9 @@ R"EXPECTEDRESPONSE(const uiLanguages = [
   {
     "Հայերեն": "hy"
   },
+  {
+    "interlingua": "ia"
+  },
   {
     "italiano": "it"
   },