diff --git a/Minecraft.World/compression.cpp b/Minecraft.World/compression.cpp
index a4d7e4f2..0caa023f 100644
--- a/Minecraft.World/compression.cpp
+++ b/Minecraft.World/compression.cpp
@@ -51,6 +51,9 @@ void Compression::ReleaseThreadStorage()
 Compression *Compression::getCompression()
 {
 	const ThreadStorage *tls = static_cast<ThreadStorage *>(TlsGetValue(tlsIdx));
+	if (!tls) {
+		return nullptr;
+	}
 	return tls->compression;
 }