diff --git a/src/routes/dataset/meta-form/TargetSize.svelte b/src/routes/dataset/meta-form/TargetSize.svelte
index 9094a0d..b956d80 100644
--- a/src/routes/dataset/meta-form/TargetSize.svelte
+++ b/src/routes/dataset/meta-form/TargetSize.svelte
@@ -66,12 +66,14 @@ function saveTargetSizeDelayed() {
   <input
     type="number"
     class="text-right max-w-[5em]"
+    disabled={!($activeDatasetMeta?.unifiedImageSize ?? true)}
     bind:value={width}
     oninput={saveTargetSizeDelayed} />
   <span>&times;</span>
   <input
     type="number"
     class="text-right max-w-[5em]"
+    disabled={!($activeDatasetMeta?.unifiedImageSize ?? true)}
     bind:value={height}
     oninput={saveTargetSizeDelayed} />
   <span>px</span>