diff --git a/docs/changelog.rst b/docs/changelog.rst
index 8f45ada44..9339bd84c 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -63,6 +63,8 @@ Detailed list of changes
 
 - Wayland labwc: Fix kitty timing out waiting for compositor to quit fucking around with scales on labwc (:iss:`7540`)
 
+- Fix :opt:`scrollback_indicator_opacity` not actually controlling the opacity (:iss:`7557`)
+
 0.35.1 [2024-05-31]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/kitty/shaders.c b/kitty/shaders.c
index 9b4f8ebeb..992d173d4 100644
--- a/kitty/shaders.c
+++ b/kitty/shaders.c
@@ -612,7 +612,7 @@ draw_scroll_indicator(bool premult, Screen *screen, const CellRenderData *crd) {
     if (premult) { BLEND_PREMULT } else { BLEND_ONTO_OPAQUE }
     bind_program(TINT_PROGRAM);
     const color_type bar_color = colorprofile_to_color(screen->color_profile, screen->color_profile->overridden.highlight_bg, screen->color_profile->configured.highlight_bg).rgb;
-    GLfloat alpha = 0.8f;
+    GLfloat alpha = OPT(scrollback_indicator_opacity);
     float frac = (float)screen->scrolled_by / (float)screen->historybuf->count;
     const GLfloat bar_height = crd->gl.dy;
     GLfloat bottom = (crd->gl.ystart - crd->gl.height);