diff --git a/src/rpc/layout/test.rs b/src/rpc/layout/test.rs
index 0ce090d2..e9639073 100644
--- a/src/rpc/layout/test.rs
+++ b/src/rpc/layout/test.rs
@@ -35,7 +35,7 @@ fn check_against_naive(cl: &LayoutVersion) -> Result<bool, Error> {
 	}
 	for uuid in cl.nongateway_nodes() {
 		let z = cl.get_node_zone(&uuid)?;
-		let c = cl.get_node_capacity(&uuid)?;
+		let c = cl.get_node_capacity(&uuid).unwrap();
 		zone_token.insert(
 			z.to_string(),
 			zone_token[z] + min(NB_PARTITIONS, (c / over_size) as usize),