diff --git a/src/server/frontend_wayland/wlr_screencopy_v1.cpp b/src/server/frontend_wayland/wlr_screencopy_v1.cpp
index 67dd39096b4..cff792bcfa1 100644
--- a/src/server/frontend_wayland/wlr_screencopy_v1.cpp
+++ b/src/server/frontend_wayland/wlr_screencopy_v1.cpp
@@ -378,8 +378,7 @@ void mf::WlrScreencopyManagerV1::capture_output(
     (void)overlay_cursor;
     auto const& output_config = OutputGlobal::from_or_throw(output).current_config();
     auto const extents = output_config.extents();
-    auto const buffer_size = output_config.modes[output_config.current_mode_index].size;
-    new WlrScreencopyFrameV1{frame, this, ctx, {output, extents, buffer_size}};
+    new WlrScreencopyFrameV1{frame, this, ctx, {output, extents, extents.size}};
 }
 
 void mf::WlrScreencopyManagerV1::capture_output_region(
@@ -393,8 +392,7 @@ void mf::WlrScreencopyManagerV1::capture_output_region(
     auto const& output_config = OutputGlobal::from_or_throw(output).current_config();
     auto const extents = output_config.extents();
     auto const intersection = intersection_of({{x, y}, {width, height}}, extents);
-    auto const output_size = output_config.modes[output_config.current_mode_index].size;
-    auto const buffer_size = translate_and_scale(intersection, extents, {{}, output_size}).size;
+    auto const buffer_size = translate_and_scale(intersection, extents, {{}, extents.size}).size;
     new WlrScreencopyFrameV1{frame, this, ctx, {output, intersection, buffer_size}};
 }