diff --git a/models/leaderboard.go b/models/leaderboard.go
index 6b7bc38..17f1771 100644
--- a/models/leaderboard.go
+++ b/models/leaderboard.go
@@ -45,10 +45,11 @@ func (l Leaderboard) TopKeys(by uint8) []string {
 		if item.Key == nil || item.By == nil || *item.By != by {
 			continue
 		}
-		if _, ok := totalsMapped[*item.Key]; !ok {
-			totalsMapped[*item.Key] = &keyTotal{Key: *item.Key, Total: 0}
+		key := strings.ToLower(*item.Key)
+		if _, ok := totalsMapped[key]; !ok {
+			totalsMapped[key] = &keyTotal{Key: *item.Key, Total: 0}
 		}
-		totalsMapped[*item.Key].Total += item.Total
+		totalsMapped[key].Total += item.Total
 	}
 
 	totals := slice.Map[*keyTotal, keyTotal](maputil.Values[string, *keyTotal](totalsMapped), func(i int, item *keyTotal) keyTotal {
diff --git a/models/view/leaderboard.go b/models/view/leaderboard.go
index 6cb5c53..b564cc0 100644
--- a/models/view/leaderboard.go
+++ b/models/view/leaderboard.go
@@ -47,7 +47,6 @@ func (s *LeaderboardViewModel) ColorModifier(item *models.LeaderboardItem, princ
 func (s *LeaderboardViewModel) LangIcon(lang string) string {
 	// https://icon-sets.iconify.design/mdi/
 	langs := map[string]string{
-		"c":          "c",
 		"c++":        "cpp",
 		"cpp":        "cpp",
 		"go":         "go",
diff --git a/routes/leaderboard.go b/routes/leaderboard.go
index ffb6d3d..7e4c625 100644
--- a/routes/leaderboard.go
+++ b/routes/leaderboard.go
@@ -87,8 +87,9 @@ func (h *LeaderboardHandler) buildViewModel(r *http.Request) *view.LeaderboardVi
 			topKeys = leaderboard.TopKeys(by)
 			if len(topKeys) > 0 {
 				if keyParam == "" {
-					keyParam = strings.ToLower(topKeys[0])
+					keyParam = topKeys[0]
 				}
+				keyParam = strings.ToLower(keyParam)
 				leaderboard = leaderboard.TopByKey(by, keyParam)
 			}
 		} else {
diff --git a/views/leaderboard.tpl.html b/views/leaderboard.tpl.html
index 4841f24..124763b 100644
--- a/views/leaderboard.tpl.html
+++ b/views/leaderboard.tpl.html
@@ -23,7 +23,7 @@
         <h1 class="h1" style="margin-bottom: 0.5rem">Leaderboard</h1>
 
         <p class="block text-sm text-gray-300 w-full lg:w-3/4 mb-8">
-            Wakapi's leaderboard shows a ranking of the most active users on this servers, given they opted in to get listed on the public leaderboard. Statistics are updated at least every 12 hours and are based on the users' total coding time in the past seven days.
+            Wakapi's leaderboard shows a ranking of the most active users on this server, given they opted in to get listed on the public leaderboard. Statistics are updated at least every 12 hours and are based on the users' total coding time in the past seven days.
             To participate, log in, go to <a class="link" href="settings#permissions">Settings 🠒 Permissions</a> and enable leaderboards.
         </p>
 
@@ -40,7 +40,7 @@
         <div class="flex flex-wrap space-x-2 mb-4">
             {{ range $i, $key := (strslice .TopKeys 0 10) }}
             <div class="inline-block mb-4">
-                <a href="leaderboard?by={{ $.By }}&key={{ $key }}" class="{{ if eq $.Key (lower $key) }} btn-primary {{ else }} btn-default {{ end }} btn-small cursor-pointer whitespace-nowrap">
+                <a href="leaderboard?by={{ $.By }}&key={{ lower $key }}" class="{{ if eq (lower $.Key) (lower $key) }} btn-primary {{ else }} btn-default {{ end }} btn-small cursor-pointer whitespace-nowrap">
                     {{ if and (eq (lower $.By) "language") ($.LangIcon $key) }}
                     <span class="align-middle leading-none"><span class="iconify inline text-white text-base" data-icon="{{ ($.LangIcon $key) | urlSafe }}"></span>&nbsp;</span>
                     {{ end }}