diff --git a/src/pp/pp_vis/pp_vis_core.c b/src/pp/pp_vis/pp_vis_core.c
index b2933ae5..97cca2b4 100644
--- a/src/pp/pp_vis/pp_vis_core.c
+++ b/src/pp/pp_vis/pp_vis_core.c
@@ -6286,6 +6286,8 @@ void V_TickForever(WaveLaneCtx *lane)
                 {
                   f64 ruler_left_ns = MinF64(profiler->ruler_start_ns, profiler->cursor_ns);
                   f64 ruler_right_ns = MaxF64(profiler->ruler_start_ns, profiler->cursor_ns);
+                  ruler_left_ns = ClampF64(ruler_left_ns, view_start_ns, view_end_ns);
+                  ruler_right_ns = ClampF64(ruler_right_ns, view_start_ns, view_end_ns);
 
                   ruler_len_ns = ruler_right_ns - ruler_left_ns;
                   f64 ruler_len_px = ruler_len_ns / profiler->ns_per_px;