diff --git a/Minecraft.World/Network/Packets/UpdateMobEffectPacket.cpp b/Minecraft.World/Network/Packets/UpdateMobEffectPacket.cpp
index 56873ac80..443c24c56 100644
--- a/Minecraft.World/Network/Packets/UpdateMobEffectPacket.cpp
+++ b/Minecraft.World/Network/Packets/UpdateMobEffectPacket.cpp
@@ -17,7 +17,7 @@ UpdateMobEffectPacket::UpdateMobEffectPacket()
 UpdateMobEffectPacket::UpdateMobEffectPacket(int entityId, MobEffectInstance *effect)
 {
 	this->entityId = entityId;
-	this->effectId = (BYTE) (effect->getId() & 0xff);
+	this->effectId = static_cast<std::uint8_t>(effect->getId() & 0xff);
 	this->effectAmplifier = (char) (effect->getAmplifier() & 0xff);
 	this->effectDurationTicks = (short) effect->getDuration();
 }
@@ -57,4 +57,4 @@ bool UpdateMobEffectPacket::isInvalidatedBy(std::shared_ptr<Packet> packet)
 {
 	std::shared_ptr<UpdateMobEffectPacket> target = std::dynamic_pointer_cast<UpdateMobEffectPacket>(packet);
 	return target->entityId == entityId && target->effectId == effectId;
-}
\ No newline at end of file
+}
diff --git a/Minecraft.World/Network/Packets/UpdateMobEffectPacket.h b/Minecraft.World/Network/Packets/UpdateMobEffectPacket.h
index 0eeed4dc1..d8d6c879e 100644
--- a/Minecraft.World/Network/Packets/UpdateMobEffectPacket.h
+++ b/Minecraft.World/Network/Packets/UpdateMobEffectPacket.h
@@ -1,4 +1,5 @@
 #pragma once
+#include <cstdint>
 
 #include "Packet.h"
 
@@ -8,7 +9,7 @@ class UpdateMobEffectPacket : public Packet, public std::enable_shared_from_this
 {
 public:
 	int entityId;
-	BYTE effectId;
+	std::uint8_t effectId;
 	char effectAmplifier;
 	short effectDurationTicks;
 
@@ -25,4 +26,4 @@ public:
 public:
 	static std::shared_ptr<Packet> create() { return std::shared_ptr<Packet>(new UpdateMobEffectPacket()); }
 	virtual int getId() { return 41; }
-};
\ No newline at end of file
+};