diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 51d6309e7f3bc90939335c6269c04170ab987481..7e1bfb98406404c87bd290b2fe4d9a181980ebe0 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -300,6 +300,7 @@ static void __init setup_zfcpdump(unsigned int console_devno)
 	else
 		sprintf(str, "cio_ignore=all,!0.0.%04x",
 			ipl_info.data.fcp.dev_id.devno);
+	strcat(COMMAND_LINE, " ");
 	strcat(COMMAND_LINE, str);
 	console_loglevel = 2;
 }