diff --git a/recipes/glibc/glibc-locale_%.bbappend b/recipes/glibc/glibc-locale_%.bbappend
index 2938186..c5c0655 100644
--- a/recipes/glibc/glibc-locale_%.bbappend
+++ b/recipes/glibc/glibc-locale_%.bbappend
@@ -1 +1,4 @@
-INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+python () {
+    if d.getVar('TCMODE', True).startswith('external-sourcery'):
+        d.setVar('INHIBIT_PACKAGE_DEBUG_SPLIT', '1')
+}