diff --git a/docs/src/content/docs/changelog/v0.34.4.md b/docs/src/content/docs/changelog/v0.34.4.md
index d1f80d66..10ef68fd 100644
--- a/docs/src/content/docs/changelog/v0.34.4.md
+++ b/docs/src/content/docs/changelog/v0.34.4.md
@@ -5,6 +5,8 @@ slug: changelog/v0.34.4
 
 * Upgrade to libvips v8.17.2 for upstream bug fixes.
 
+* Ensure TIFF `subifd` and OpenSlide `level` input options are respected (regression in 0.34.3).
+
 * Ensure `autoOrient` occurs before non-90 angle rotation.
   [#4425](https://github.com/lovell/sharp/issues/4425)
 
diff --git a/src/common.cc b/src/common.cc
index 2688bd73..e4ce7320 100644
--- a/src/common.cc
+++ b/src/common.cc
@@ -421,14 +421,14 @@ namespace sharp {
               ->set("high_bitdepth", descriptor->svgHighBitdepth);
         break;
       case ImageType::TIFF:
-        option->set("tiffSubifd", descriptor->tiffSubifd);
+        option->set("subifd", descriptor->tiffSubifd);
         break;
       case ImageType::PDF:
         option->set("dpi", descriptor->density)
               ->set("background", descriptor->pdfBackground);
         break;
       case ImageType::OPENSLIDE:
-        option->set("openSlideLevel", descriptor->openSlideLevel);
+        option->set("level", descriptor->openSlideLevel);
         break;
       case ImageType::JP2:
         option->set("oneshot", descriptor->jp2Oneshot);