diff --git a/Minecraft.Server/Windows64/ServerMain.cpp b/Minecraft.Server/Windows64/ServerMain.cpp
index 92864ffcf..2b7929fd2 100644
--- a/Minecraft.Server/Windows64/ServerMain.cpp
+++ b/Minecraft.Server/Windows64/ServerMain.cpp
@@ -29,6 +29,7 @@
 #include "../../Minecraft.World/compression.h"
 #include "../../Minecraft.World/OldChunkStorage.h"
 #include "../../Minecraft.World/net.minecraft.world.level.tile.h"
+#include "../../Minecraft.World/Random.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -574,6 +575,10 @@ int main(int argc, char **argv)
 	{
 		param->seed = config.seed;
 	}
+	else
+	{
+		param->seed = (new Random())->nextLong();
+	}
 #ifdef _LARGE_WORLDS
 	param->xzSize = (unsigned int)config.worldSizeChunks;
 	param->hellScale = (unsigned char)config.worldHellScale;