diff --git a/src/pocketmine/block/SignPost.php b/src/pocketmine/block/SignPost.php
index c151f0731..5ae519979 100644
--- a/src/pocketmine/block/SignPost.php
+++ b/src/pocketmine/block/SignPost.php
@@ -88,7 +88,7 @@ class SignPost extends Transparent{
 	}
 
 	public function onBreak(Item $item){
-		$this->getLevel()->setBlock($this, new Air(), true, true, true);
+		$this->getLevel()->setBlock($this, new Air(), true, true);
 
 		return true;
 	}
diff --git a/src/pocketmine/block/WallSign.php b/src/pocketmine/block/WallSign.php
index 1a09123fa..66064a8bc 100644
--- a/src/pocketmine/block/WallSign.php
+++ b/src/pocketmine/block/WallSign.php
@@ -22,6 +22,8 @@
 namespace pocketmine\block;
 
 
+use pocketmine\level\Level;
+
 class WallSign extends SignPost{
 
 	protected $id = self::WALL_SIGN;
@@ -31,6 +33,20 @@ class WallSign extends SignPost{
 	}
 
 	public function onUpdate($type){
+		$faces = [
+			2 => 3,
+			3 => 2,
+			4 => 5,
+			5 => 4,
+		];
+		if($type === Level::BLOCK_UPDATE_NORMAL){
+			if(isset($faces[$this->meta])) {
+				if ($this->getSide($faces[$this->meta])->getId() === self::AIR) {
+					$this->getLevel()->useBreakOn($this);
+				}
+				return Level::BLOCK_UPDATE_NORMAL;
+			}
+		}
 		return false;
 	}
 }
\ No newline at end of file