diff --git a/src/base/base_thread_context.c b/src/base/base_thread_context.c
index 12cc3343..b8d87170 100644
--- a/src/base/base_thread_context.c
+++ b/src/base/base_thread_context.c
@@ -18,7 +18,7 @@ internal TCTX *
 tctx_alloc(void)
 {
 #if PROFILE_TELEMETRY
-  thread_static static U8 name[2][1024];
+  thread_static static char name[2][1024];
   raddbg_snprintf(name[0], sizeof(name[0]), "Scratch/0[TID:%u]", os_tid());
   raddbg_snprintf(name[1], sizeof(name[1]), "Scratch/1[TID:%u]", os_tid());
   Arena *arena_0 = arena_alloc(.name = name[0]);