diff --git a/.changeset/purple-kids-talk.md b/.changeset/purple-kids-talk.md
new file mode 100644
index 000000000..175f60de1
--- /dev/null
+++ b/.changeset/purple-kids-talk.md
@@ -0,0 +1,5 @@
+---
+'@graphprotocol/graph-cli': patch
+---
+
+fix bug with missing Graft type in SpS manifest definition
diff --git a/packages/cli/src/protocols/substreams/manifest.graphql b/packages/cli/src/protocols/substreams/manifest.graphql
index 364f910eb..98e6a3bdf 100644
--- a/packages/cli/src/protocols/substreams/manifest.graphql
+++ b/packages/cli/src/protocols/substreams/manifest.graphql
@@ -24,6 +24,11 @@ type Schema {
   file: File!
 }
 
+type Graft {
+  base: String!
+  block: BigInt!
+}
+
 type IndexerHints {
   prune: StringOrBigInt
 }