diff --git a/lib/rex/arch/x86.rb b/lib/rex/arch/x86.rb
index 313a61d430..ccfe8a9260 100644
--- a/lib/rex/arch/x86.rb
+++ b/lib/rex/arch/x86.rb
@@ -171,7 +171,7 @@ module X86
 	end
 
 	def self.pack_lsb(num)
-		pack_dword(num)[0]
+		pack_dword(num)[0,1]
 	end
 
 	def self._check_reg(*regs)