diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/files/grub.cfg b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/files/grub.cfg
index f80c5585ba..f114fc95c4 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/files/grub.cfg
+++ b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-azure/files/grub.cfg
@@ -1,7 +1,7 @@
 # CoreOS GRUB settings
 
 # Azure only has a serial console.
-set linux_console="console=ttyS0,115200n8"
+set linux_console="console=ttyS0,115200n8 earlyprintk=ttyS0,115200"
 serial com0 --speed=115200 --word=8 --parity=no
 terminal_input serial_com0
 terminal_output serial_com0