diff --git a/headers/os/Be.h b/headers/os/Be.h
index 6321905562..2890faae5f 100644
--- a/headers/os/Be.h
+++ b/headers/os/Be.h
@@ -7,6 +7,7 @@
 #include <GameKit.h>
 #include <InterfaceKit.h>
 #include <KernelKit.h>
+#include <LocaleKit.h>
 #include <MediaKit.h>
 #include <MidiKit.h>
 #include <NetKit.h>
diff --git a/headers/os/LocaleKit.h b/headers/os/LocaleKit.h
new file mode 100644
index 0000000000..3fd3fa3939
--- /dev/null
+++ b/headers/os/LocaleKit.h
@@ -0,0 +1,26 @@
+/*
+ * Master include file for the Locale Kit.
+ *
+ * CatalogInddOn.h not included, as it's only required when building an add-on.
+ */
+#include <Catlog.h>
+#include <Collator.h>
+#include <Country.h>
+#include <Currency.h>
+#include <FloatFormat.h>
+#include <FloatFormatImpl.h>
+#include <FloatFormatParameters.h>
+#include <Format.h>
+#include <FormatImpl.h>
+#include <FormatParameters.h>
+#include <GenericNumberFormat.h>
+#include <IntegerFormat.h>
+#include <IntegerFormatImpl.h>
+#include <IntegerFormatParameters.h>
+#include <Language.h>
+#include <Locale.h>
+#include <NumberFormat.h>
+#include <NumberFormatImpl.h>
+#include <NumberFormatParameters.h>
+#include <TimeFormat.h>
+#include <UnicodeChar.h>