diff --git a/src/kernel/boot/platform/openfirmware/Jamfile b/src/kernel/boot/platform/openfirmware/Jamfile
index 9df61978e2..c379bb6ddd 100644
--- a/src/kernel/boot/platform/openfirmware/Jamfile
+++ b/src/kernel/boot/platform/openfirmware/Jamfile
@@ -6,6 +6,7 @@ KernelMergeObject boot_platform_openfirmware.o :
 	<$(SOURCE_GRIST)>openfirmware.c
 	<$(SOURCE_GRIST)>debug.c
 	<$(SOURCE_GRIST)>misc.c
+	<$(SOURCE_GRIST)>mmu.cpp
 	<$(SOURCE_GRIST)>Handle.cpp
 	<$(SOURCE_GRIST)>devices.cpp
 	<$(SOURCE_GRIST)>console.cpp