diff --git a/Source-code-map.md b/Source-code-map.md
index b2deeba..36c239b 100644
--- a/Source-code-map.md
+++ b/Source-code-map.md
@@ -19,7 +19,7 @@ The BOINC software consists of a number of parts:
 
 ## Source code tree map
 
-| directory | contents |
+| Directory | Contents |
 | --- | --- |
 | android | the Android GUI (java, kotlin)|
 | api | the App API|