diff --git a/web/src/portico/hello.js b/web/src/portico/hello.js
index ac64d3211d..ae761f21e0 100644
--- a/web/src/portico/hello.js
+++ b/web/src/portico/hello.js
@@ -1,16 +1,16 @@
 // Mark this as a module for ESLint and Webpack.
 export {};
 
-function get_new_rand(oldRand, max) {
-    const newRand = Math.floor(Math.random() * max);
-    return newRand === oldRand ? get_new_rand(newRand, max) : newRand;
+function get_new_rand(old_random_int, max) {
+    const random_int = Math.floor(Math.random() * max);
+    return random_int === old_random_int ? get_new_rand(random_int, max) : random_int;
 }
 
 function get_random_item_from_array(array) {
     return array[Math.floor(Math.random() * array.length)];
 }
 
-const current_clint_logo_class_names = new Set([
+const current_client_logo_class_names = new Set([
     "client-logos__logo_akamai",
     "client-logos__logo_tum",
     "client-logos__logo_wikimedia",
@@ -18,7 +18,7 @@ const current_clint_logo_class_names = new Set([
     "client-logos__logo_dr_on_demand",
     "client-logos__logo_maria",
 ]);
-const future_logo_class_names = new Set([
+const future_client_logo_class_names = new Set([
     "client-logos__logo_pilot",
     "client-logos__logo_recurse",
     "client-logos__logo_level_up",
@@ -29,26 +29,28 @@ const future_logo_class_names = new Set([
     "client-logos__logo_lean",
     "client-logos__logo_asciidoc",
 ]);
-let current_clint_logo_class_namesIndex = 0;
+let current_client_logo_class_names_index = 0;
 function update_client_logo() {
     if (document.hidden) {
         return;
     }
-    const logos = [...document.querySelectorAll("[class^='client-logos__']")];
-    current_clint_logo_class_namesIndex = get_new_rand(
-        current_clint_logo_class_namesIndex,
-        logos.length,
+    const client_logos = [...document.querySelectorAll("[class^='client-logos__']")];
+    current_client_logo_class_names_index = get_new_rand(
+        current_client_logo_class_names_index,
+        client_logos.length,
     );
-    const el = logos[current_clint_logo_class_namesIndex];
+    const client_logo_elt = client_logos[current_client_logo_class_names_index];
 
-    const oldClass = el.className;
-    el.className = "";
-    current_clint_logo_class_names.delete(oldClass);
-    const newClass = get_random_item_from_array([...future_logo_class_names.values()]);
-    future_logo_class_names.delete(newClass);
-    el.className = newClass;
-    current_clint_logo_class_names.add(newClass);
-    future_logo_class_names.add(oldClass);
+    const current_logo_class = client_logo_elt.className;
+    current_client_logo_class_names.delete(current_logo_class);
+
+    const next_logo_class = get_random_item_from_array([
+        ...future_client_logo_class_names.values(),
+    ]);
+    future_client_logo_class_names.delete(next_logo_class);
+    client_logo_elt.className = next_logo_class;
+    current_client_logo_class_names.add(next_logo_class);
+    future_client_logo_class_names.add(current_logo_class);
 }
 
 setInterval(update_client_logo, 2500);