diff --git a/lib/towerops_web/live/insights_live/index.ex b/lib/towerops_web/live/insights_live/index.ex
index a21b876b..904691cb 100644
--- a/lib/towerops_web/live/insights_live/index.ex
+++ b/lib/towerops_web/live/insights_live/index.ex
@@ -144,6 +144,17 @@ defmodule ToweropsWeb.InsightsLive.Index do
   def source_classes("system"), do: "bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300"
   def source_classes(_), do: "bg-gray-100 text-gray-600 dark:bg-gray-800 dark:text-gray-400"
 
+  @doc """
+  Display label for a source. Acronyms render uppercase; everything else
+  capitalises the first letter so the badge reads "Preseem" rather than
+  "preseem". Picked over CSS `capitalize` because that produces "Snmp"
+  and "Ai" instead of "SNMP" and "AI".
+  """
+  def source_label("ai"), do: "AI"
+  def source_label("snmp"), do: "SNMP"
+  def source_label(other) when is_binary(other), do: String.capitalize(other)
+  def source_label(other), do: other
+
   @doc false
   def build_filter_params(base, overrides) do
     base
diff --git a/lib/towerops_web/live/insights_live/index.html.heex b/lib/towerops_web/live/insights_live/index.html.heex
index 0292cef9..fa336345 100644
--- a/lib/towerops_web/live/insights_live/index.html.heex
+++ b/lib/towerops_web/live/insights_live/index.html.heex
@@ -75,14 +75,14 @@
           ~p"/insights?#{build_filter_params(%{status: @filter_status, urgency: @filter_urgency}, %{source: source})}"
         }
         class={[
-          "rounded-md px-2 py-1 text-xs font-medium capitalize",
+          "rounded-md px-2 py-1 text-xs font-medium",
           if(@filter_source == source,
             do: "bg-gray-200 text-gray-800 dark:bg-white/20 dark:text-white",
             else: "text-gray-500 hover:bg-gray-100 dark:text-gray-400 dark:hover:bg-white/10"
           )
         ]}
       >
-        {source}
+        {source_label(source)}
       </.link>
     </div>
 
@@ -252,10 +252,10 @@
 
                   <%!-- Source badge --%>
                   <span class={[
-                    "inline-flex items-center rounded-full px-2 py-0.5 text-xs font-medium capitalize",
+                    "inline-flex items-center rounded-full px-2 py-0.5 text-xs font-medium",
                     source_classes(insight.source)
                   ]}>
-                    {insight.source}
+                    {source_label(insight.source)}
                   </span>
 
                   <%!-- AI badge — present on any LLM-enriched insight --%>