diff --git a/conf/distro/include/arm-defaults.inc b/conf/distro/include/arm-defaults.inc
index 8c232ee..f62f3ba 100644
--- a/conf/distro/include/arm-defaults.inc
+++ b/conf/distro/include/arm-defaults.inc
@@ -1,6 +1,9 @@
+# Cortex-A8 machines:
+
 DEFAULTTUNE_beagleboard = "cortexa8hf-neon"
 DEFAULTTUNE_beaglebone = "cortexa8hf-neon"
-DEFAULTTUNE_pandaboard = "cortexa8hf-neon"
 DEFAULTTUNE_overo = "cortexa8hf-neon"
 
+# Cortex-A9 machines:
+DEFAULTTUNE_pandaboard = "cortexa9hf-neon"