diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 6fec7fd8cd1a..1e83406382e7 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -52,7 +52,7 @@
 #define IBMASM_CMD_TIMEOUT_NORMAL	45
 #define IBMASM_CMD_TIMEOUT_EXTRA	240
 
-#define IBMASM_CMD_MAX_BUFFER_SIZE	0x4000
+#define IBMASM_CMD_MAX_BUFFER_SIZE	0x8000
 
 #define REVERSE_HEARTBEAT_TIMEOUT	120