--- a/net/minecraft/block/MushroomBlock.java
+++ b/net/minecraft/block/MushroomBlock.java
@@ -64,7 +64,7 @@
       if (blockstate.func_235714_a_(BlockTags.field_242171_aD)) {
          return true;
       } else {
-         return p_196260_2_.func_226659_b_(p_196260_3_, 0) < 13 && this.func_200014_a_(blockstate, p_196260_2_, blockpos);
+         return p_196260_2_.func_226659_b_(p_196260_3_, 0) < 13 && blockstate.canSustainPlant(p_196260_2_, blockpos, net.minecraft.util.Direction.UP, this);
       }
    }
 
