diff --git a/include/SDL3/SDL_revision.h b/include/SDL3/SDL_revision.h
index badf017d1..7c41b3aa5 100644
--- a/include/SDL3/SDL_revision.h
+++ b/include/SDL3/SDL_revision.h
@@ -28,7 +28,21 @@
 #ifndef SDL_revision_h_
 #define SDL_revision_h_
 
-#ifdef SDL_VENDOR_INFO
+#ifdef SDL_WIKI_DOCUMENTATION_SECTION
+/**
+ * This macro is a string describing the source at a particular point in development.
+ *
+ * This string is often generated from revision control's state at build time.
+ *
+ * This string can be quite complex and does not follow any standard.
+ * For example, it might be something like "SDL-prerelease-3.1.1-47-gf687e0732".
+ * It might also be user-defined at build time, so it's best to treat it as
+ * a clue in debugging forensics and not something the app will parse in any way.
+ *
+ * \since This macro is available since SDL 3.0.0.
+ */
+#define SDL_REVISION "Some arbitrary string decided at SDL build time"
+#elif defined(SDL_VENDOR_INFO)
 #define SDL_REVISION SDL_VENDOR_INFO
 #else
 #define SDL_REVISION ""