diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index 65865b7811..92f859fd94 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_libplacebo.c
@@ -551,9 +551,15 @@ fail:
 
 static int libplacebo_config_input(AVFilterLink *inlink)
 {
+    AVFilterContext *avctx = inlink->dst;
+    LibplaceboContext *s   = avctx->priv;
+
     if (inlink->format == AV_PIX_FMT_VULKAN)
         return ff_vk_filter_config_input(inlink);
 
+    /* Forward this to the vkctx for format selection */
+    s->vkctx.input_format = inlink->format;
+
     return 0;
 }