diff --git a/paper-api/src/main/java/org/bukkit/block/data/BlockData.java b/paper-api/src/main/java/org/bukkit/block/data/BlockData.java
index 0ecc54bd810a..0fef5a0962ae 100644
--- a/paper-api/src/main/java/org/bukkit/block/data/BlockData.java
+++ b/paper-api/src/main/java/org/bukkit/block/data/BlockData.java
@@ -275,6 +275,7 @@ public interface BlockData extends Cloneable {
      * bound to a location.
      *
      * @return a new {@link BlockState}
+     * @throws IllegalStateException if the block is required to be placed to get a BlockState
      */
     @NotNull
     @ApiStatus.Experimental