diff --git a/configure/os/CONFIG_SITE.SL5-x86_64.Common b/configure/os/CONFIG_SITE.SL5-x86_64.Common
index 942ee1fa2..ce1584300 100644
--- a/configure/os/CONFIG_SITE.SL5-x86_64.Common
+++ b/configure/os/CONFIG_SITE.SL5-x86_64.Common
@@ -1,2 +1,3 @@
 include $(CONFIG)/os/CONFIG_SITE.linux-x86.Common
+# Build 32 bit version as a cross architecture
 CROSS_COMPILER_TARGET_ARCHS += SL5-x86
diff --git a/configure/os/CONFIG_SITE.SL6-x86_64.Common b/configure/os/CONFIG_SITE.SL6-x86_64.Common
index 14e6a9c7d..b4438d768 100644
--- a/configure/os/CONFIG_SITE.SL6-x86_64.Common
+++ b/configure/os/CONFIG_SITE.SL6-x86_64.Common
@@ -1,2 +1,3 @@
 include $(CONFIG)/os/CONFIG_SITE.linux-x86.Common
+# Build 32 bit version as a cross architecture
 CROSS_COMPILER_TARGET_ARCHS += SL6-x86