diff --git a/packages/viewer/src/routes/(app)/theorems/[id]/converse/+page.svelte b/packages/viewer/src/routes/(app)/theorems/[id]/converse/+page.svelte
index c7d5a11f..7d78755c 100644
--- a/packages/viewer/src/routes/(app)/theorems/[id]/converse/+page.svelte
+++ b/packages/viewer/src/routes/(app)/theorems/[id]/converse/+page.svelte
@@ -5,7 +5,7 @@
 
   export let data: PageData
 
-  $: title = `S${data.theorem.id}: ${data.theorem.name}`
+  $: title = `T${data.theorem.id}: ${data.theorem.name}`
 </script>
 
 <Title {title} />
diff --git a/packages/viewer/src/routes/(app)/theorems/[id]/references/+page.svelte b/packages/viewer/src/routes/(app)/theorems/[id]/references/+page.svelte
index 2d212982..aa4e72da 100644
--- a/packages/viewer/src/routes/(app)/theorems/[id]/references/+page.svelte
+++ b/packages/viewer/src/routes/(app)/theorems/[id]/references/+page.svelte
@@ -5,7 +5,7 @@
 
   export let data: PageData
 
-  $: title = `S${data.theorem.id}: ${data.theorem.name}`
+  $: title = `T${data.theorem.id}: ${data.theorem.name}`
 </script>
 
 <Title {title} />