diff --git a/src/pocketmine/block/MelonStem.php b/src/pocketmine/block/MelonStem.php
index 8230107ee6..6f2a32cfe6 100644
--- a/src/pocketmine/block/MelonStem.php
+++ b/src/pocketmine/block/MelonStem.php
@@ -24,6 +24,7 @@ namespace pocketmine\block;
 use pocketmine\event\block\BlockGrowEvent;
 use pocketmine\item\Item;
 use pocketmine\level\Level;
+use pocketmine\math\Vector3;
 use pocketmine\Server;
 
 class MelonStem extends Crops{
@@ -40,7 +41,7 @@ class MelonStem extends Crops{
 
 	public function onUpdate($type){
 		if($type === Level::BLOCK_UPDATE_NORMAL){
-			if($this->getSide(0)->isTransparent() === true){
+			if($this->getSide(Vector3::SIDE_DOWN)->getId() !== Block::FARMLAND){
 				$this->getLevel()->useBreakOn($this);
 				return Level::BLOCK_UPDATE_NORMAL;
 			}
diff --git a/src/pocketmine/block/PumpkinStem.php b/src/pocketmine/block/PumpkinStem.php
index cce0e6a5bf..e8a653bacb 100644
--- a/src/pocketmine/block/PumpkinStem.php
+++ b/src/pocketmine/block/PumpkinStem.php
@@ -24,6 +24,7 @@ namespace pocketmine\block;
 use pocketmine\event\block\BlockGrowEvent;
 use pocketmine\item\Item;
 use pocketmine\level\Level;
+use pocketmine\math\Vector3;
 use pocketmine\Server;
 
 class PumpkinStem extends Crops{
@@ -40,7 +41,7 @@ class PumpkinStem extends Crops{
 
 	public function onUpdate($type){
 		if($type === Level::BLOCK_UPDATE_NORMAL){
-			if($this->getSide(0)->isTransparent()){
+			if($this->getSide(Vector3::SIDE_DOWN)->getId() !== Block::FARMLAND){
 				$this->getLevel()->useBreakOn($this);
 				return Level::BLOCK_UPDATE_NORMAL;
 			}