diff --git a/resources/README.md b/resources/README.md
index 5bd6a187fa142bcd8c0372c3a39a2ad1795c4a22..c4dae85038f7c456de5969f78ab387966df9f7fe 100644
--- a/resources/README.md
+++ b/resources/README.md
@@ -1,3 +1,12 @@
 # Resources
 
-Files used for different purpose like tests.
\ No newline at end of file
+Files used for different purpose like tests.
+
+## metadata.scale
+
+To generate it for GDev:
+
+    cargo run -- --dev --tmp
+    subxt metadata -f bytes > resources/metadata.scale
+
+See [Upgrade metadata](../end2end-tests/README.md#upgrade-metadata) for more details.