diff --git a/arch/arm/include/uapi/asm/setup.h b/arch/arm/include/uapi/asm/setup.h
index b4d1bea21a2d..ebe54c5963ae 100644
--- a/arch/arm/include/uapi/asm/setup.h
+++ b/arch/arm/include/uapi/asm/setup.h
@@ -16,7 +16,7 @@
 
 #include <linux/types.h>
 
-#define COMMAND_LINE_SIZE 2048
+#define COMMAND_LINE_SIZE 4096
 
 /* The list ends with an ATAG_NONE node. */
 #define ATAG_NONE	0x00000000