diff --git a/data/glossaries/external.yml b/data/glossaries/external.yml
index 9b5b06ca0245..86d997ead8d8 100644
--- a/data/glossaries/external.yml
+++ b/data/glossaries/external.yml
@@ -473,7 +473,7 @@
     Open source software is software that can be freely used, modified, and
     shared (in both modified and unmodified form) by anyone. Today the concept
     of "open source" is often extended beyond software, to represent a
-    philosophy of collaboration in which working materials are made available
+    philosophy of collaboration in which source files are made available
     online for anyone to fork, modify, discuss, and contribute to.
 - term: organization
   description: >-