diff --git a/src/pocketmine/block/Cactus.php b/src/pocketmine/block/Cactus.php
index 54dec6193..e8a09c0db 100644
--- a/src/pocketmine/block/Cactus.php
+++ b/src/pocketmine/block/Cactus.php
@@ -56,10 +56,10 @@ class Cactus extends Transparent{
 
 		return new AxisAlignedBB(
 			$this->x + 0.0625,
-			$this->y,
+			$this->y + 0.0625,
 			$this->z + 0.0625,
 			$this->x + 0.9375,
-			$this->y + 1,
+			$this->y + 0.9375,
 			$this->z + 0.9375
 		);
 	}
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 1e6e7f82a..0f9d4ad34 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -1317,7 +1317,7 @@ abstract class Entity extends Location implements Metadatable{
 			}
 		}
 
-		if(!($this instanceof Player) and $vector->length() > 0){
+		if(!($this instanceof Player) and $vector->lengthSquared() > 0){
 			$vector = $vector->normalize();
 			$d = 0.014;
 			$this->motionX += $vector->x * $d;