--- ../src-base/minecraft/net/minecraft/block/BlockMushroom.java
+++ ../src-work/minecraft/net/minecraft/block/BlockMushroom.java
@@ -89,7 +89,7 @@
             }
             else
             {
-                return p_180671_1_.func_175699_k(p_180671_2_) < 13 && this.func_185514_i(iblockstate);
+                return p_180671_1_.func_175699_k(p_180671_2_) < 13 && iblockstate.func_177230_c().canSustainPlant(iblockstate, p_180671_1_, p_180671_2_.func_177977_b(), net.minecraft.util.EnumFacing.UP, this);
             }
         }
         else