diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 3043dc34a..05a4ac6fa 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -117,7 +117,6 @@ use pocketmine\network\mcpe\protocol\ClientToServerHandshakePacket;
 use pocketmine\network\mcpe\protocol\CommandBlockUpdatePacket;
 use pocketmine\network\mcpe\protocol\CommandStepPacket;
 use pocketmine\network\mcpe\protocol\ContainerClosePacket;
-use pocketmine\network\mcpe\protocol\ContainerSetContentPacket;
 use pocketmine\network\mcpe\protocol\ContainerSetSlotPacket;
 use pocketmine\network\mcpe\protocol\CraftingEventPacket;
 use pocketmine\network\mcpe\protocol\DataPacket;
diff --git a/src/pocketmine/block/GlazedTerracotta.php b/src/pocketmine/block/GlazedTerracotta.php
index e69047c00..2525a2f7c 100644
--- a/src/pocketmine/block/GlazedTerracotta.php
+++ b/src/pocketmine/block/GlazedTerracotta.php
@@ -1,5 +1,6 @@
 <?php
 
+
 /*
  *
  *  ____            _        _   __  __ _                  __  __ ____
@@ -19,6 +20,8 @@
  *
 */
 
+declare(strict_types=1);
+
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
diff --git a/src/pocketmine/block/Grass.php b/src/pocketmine/block/Grass.php
index b4dc2582b..7c9b77f51 100644
--- a/src/pocketmine/block/Grass.php
+++ b/src/pocketmine/block/Grass.php
@@ -30,7 +30,6 @@ use pocketmine\level\generator\object\TallGrass as TallGrassObject;
 use pocketmine\level\Level;
 use pocketmine\math\Vector3;
 use pocketmine\Player;
-use pocketmine\Server;
 use pocketmine\utils\Random;
 
 class Grass extends Solid{
diff --git a/src/pocketmine/block/Leaves2.php b/src/pocketmine/block/Leaves2.php
index fade337b2..421870c13 100644
--- a/src/pocketmine/block/Leaves2.php
+++ b/src/pocketmine/block/Leaves2.php
@@ -23,11 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\event\block\LeavesDecayEvent;
 use pocketmine\item\Item;
-use pocketmine\level\Level;
-use pocketmine\Player;
-use pocketmine\Server;
 
 class Leaves2 extends Leaves{
 
diff --git a/src/pocketmine/block/Skull.php b/src/pocketmine/block/Skull.php
index 93254aa1e..847875604 100644
--- a/src/pocketmine/block/Skull.php
+++ b/src/pocketmine/block/Skull.php
@@ -24,7 +24,6 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
-use pocketmine\level\Level;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\nbt\tag\ByteTag;
 use pocketmine\nbt\tag\CompoundTag;
diff --git a/src/pocketmine/block/Slab.php b/src/pocketmine/block/Slab.php
index 5bcdf2c77..f1fc5ef00 100644
--- a/src/pocketmine/block/Slab.php
+++ b/src/pocketmine/block/Slab.php
@@ -25,8 +25,6 @@ namespace pocketmine\block;
 
 use pocketmine\item\Item;
 use pocketmine\item\Tool;
-use pocketmine\math\AxisAlignedBB;
-use pocketmine\Player;
 
 class Slab extends WoodenSlab{
 	const STONE = 0;
diff --git a/src/pocketmine/block/StillLava.php b/src/pocketmine/block/StillLava.php
index 878af6941..84f21c4a5 100644
--- a/src/pocketmine/block/StillLava.php
+++ b/src/pocketmine/block/StillLava.php
@@ -23,8 +23,6 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\level\Level;
-
 class StillLava extends Lava{
 
 	protected $id = self::STILL_LAVA;
diff --git a/src/pocketmine/block/StillWater.php b/src/pocketmine/block/StillWater.php
index 0e4cbe685..7d7824f62 100644
--- a/src/pocketmine/block/StillWater.php
+++ b/src/pocketmine/block/StillWater.php
@@ -23,8 +23,6 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\level\Level;
-
 class StillWater extends Water{
 
 	protected $id = self::STILL_WATER;