diff --git a/share/config_files/ppc/mapping b/share/config_files/ppc/mapping
index cf83076d..c3eec9ea 100644
--- a/share/config_files/ppc/mapping
+++ b/share/config_files/ppc/mapping
@@ -23,5 +23,6 @@ RELEASE_NOTES   Ascii   'ttxt'  'ttro'  "Text File"
 .tbxi           Raw     'chrp'  'tbxi'  "Macintosh Toolbox ROM file"
 .sea            Raw     'aust'  'APPL'  "Self Expanding Archive"
 .sit            Raw     'SIT!'  'SITD'  "Stuffit Expander file"
+core.elf        Raw     'chrp'  'tbxi'  "Bootable GRUB2 executable."
 *               Raw     '????'  '????'  "Unknown"
 
diff --git a/share/ppc.tmpl b/share/ppc.tmpl
index 025f1dff..8d4f8103 100644
--- a/share/ppc.tmpl
+++ b/share/ppc.tmpl
@@ -4,7 +4,7 @@ configdir="tmp/config_files/ppc"
 BOOTDIR="ppc"
 GRUBDIR="boot/grub"
 LIVEDIR="LiveOS"
-MACDIR=BOOTDIR+"/mac"
+MACDIR=GRUBDIR+"/powerpc-ieee1275"
 NETBOOTDIR="images/netboot"
 
 WRAPPER="usr/sbin/wrapper"