diff --git a/pc-bios/README b/pc-bios/README
index 91218c69e9..269d99afe0 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -17,7 +17,7 @@
 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
   implementation for certain IBM POWER hardware.  The sources are at
   https://github.com/aik/SLOF, and the image currently in qemu is
-  built from git tag qemu-slof-20191209.
+  built from git tag qemu-slof-20191217.
 
 - sgabios (the Serial Graphics Adapter option ROM) provides a means for
   legacy x86 software to communicate with an attached serial console as
diff --git a/pc-bios/slof.bin b/pc-bios/slof.bin
index 50fc9b1e1c..78d8b26cbb 100644
Binary files a/pc-bios/slof.bin and b/pc-bios/slof.bin differ
diff --git a/roms/SLOF b/roms/SLOF
index 8ebf2f55e1..9546892a80 160000
--- a/roms/SLOF
+++ b/roms/SLOF
@@ -1 +1 @@
-Subproject commit 8ebf2f55e1ba1492b942ba4b682160e644fc0f98
+Subproject commit 9546892a80d5a4c73deea6719de46372f007f4a6