diff --git a/.gitattributes b/.gitattributes
index 8635115402..b60332b966 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,6 +1,6 @@
-subprojects/csri/*      linguist-vendored
-subprojects/iconv/*     linguist-vendored
-subprojects/luabins/*   linguist-vendored
+subprojects/csri/**     linguist-vendored
+subprojects/iconv/**    linguist-vendored
+subprojects/luabins/**  linguist-vendored
 
 subprojects/csri/meson.build    -linguist-vendored
 subprojects/iconv/meson.build   -linguist-vendored