diff --git a/terminal.c b/terminal.c
index 1e355fe3..f1b528fb 100644
--- a/terminal.c
+++ b/terminal.c
@@ -2407,6 +2407,8 @@ term_surface_kind(const struct terminal *term, const struct wl_surface *surface)
         return TERM_SURF_GRID;
     else if (surface == term->window->search_surface)
         return TERM_SURF_SEARCH;
+    else if (surface == term->window->scrollback_indicator_surface)
+        return TERM_SURF_SCROLLBACK_INDICATOR;
     else if (surface == term->window->csd.surface[CSD_SURF_TITLE])
         return TERM_SURF_TITLE;
     else if (surface == term->window->csd.surface[CSD_SURF_LEFT])
diff --git a/terminal.h b/terminal.h
index 85f89abf..eae636cc 100644
--- a/terminal.h
+++ b/terminal.h
@@ -195,6 +195,7 @@ enum term_surface {
     TERM_SURF_NONE,
     TERM_SURF_GRID,
     TERM_SURF_SEARCH,
+    TERM_SURF_SCROLLBACK_INDICATOR,
     TERM_SURF_TITLE,
     TERM_SURF_BORDER_LEFT,
     TERM_SURF_BORDER_RIGHT,