diff --git a/sortix/kernel.cpp b/sortix/kernel.cpp
index 81752840..7a082cf0 100644
--- a/sortix/kernel.cpp
+++ b/sortix/kernel.cpp
@@ -370,8 +370,16 @@ static void InitThread(void* /*user*/)
 
 	int argc = 1;
 	const char* argv[] = { "init", NULL };
-	int envc = 0;
-	const char* envp[] = { NULL };
+#if defined(PLATFORM_X86)
+	const char* cputype = "cputype=i486-pc-sortix";
+#elif defined(PLATFORM_X64)
+	const char* cputype = "cputype=x86_64-pc-sortix";
+#else
+	#warning No cputype environmental variable provided here.
+	const char* cputype = "cputype=unknown-pc-sortix";
+#endif
+	int envc = 1;
+	const char* envp[] = { cputype, NULL };
 	CPU::InterruptRegisters regs;
 
 	if ( process->Execute("init", program, programsize, argc, argv, envc, envp,