diff --git a/include/asm-ia64/setup.h b/include/asm-ia64/setup.h
index ea29b57affcb0eaab83a5d64a9e53e435391e201..4399a44355b3f674a676e4d606a481b80d5a41e6 100644
--- a/include/asm-ia64/setup.h
+++ b/include/asm-ia64/setup.h
@@ -1,6 +1,6 @@
 #ifndef __IA64_SETUP_H
 #define __IA64_SETUP_H
 
-#define COMMAND_LINE_SIZE	512
+#define COMMAND_LINE_SIZE	2048
 
 #endif