diff --git a/stages/org.osbuild.ostree.config b/stages/org.osbuild.ostree.config
index b004fbaf79..bd3a28a01c 100755
--- a/stages/org.osbuild.ostree.config
+++ b/stages/org.osbuild.ostree.config
@@ -42,6 +42,11 @@ SCHEMA = """
           "readonly": {
             "description": "Read only sysroot and boot",
             "type": "boolean"
+          },
+          "composefs": {
+            "description": "Enable composefs image generation on deploy.",
+            "type": "string",
+            "enum": ["true", "false", "maybe"]
           }
         }
       }
@@ -74,6 +79,10 @@ def main(tree, options):
         ro = "true" if readonly else "false"
         ostree("config", "set", "sysroot.readonly", ro, repo=repo)
 
+    composefs = sysroot_options.get("composefs")
+    if composefs is not None:
+        ostree("config", "set", "ex-integrity.composefs", composefs, repo=repo)
+
 
 if __name__ == '__main__':
     stage_args = osbuild.api.arguments()