diff --git a/eth2/genesis/src/beacon_block.rs b/eth2/genesis/src/beacon_block.rs
index e79e3d2f46..478d76ded2 100644
--- a/eth2/genesis/src/beacon_block.rs
+++ b/eth2/genesis/src/beacon_block.rs
@@ -32,12 +32,13 @@ mod tests {
     use bls::Signature;
 
     #[test]
-    fn test_genesis() {
+    fn test_state_root() {
         let spec = ChainSpec::foundation();
         let state_root = Hash256::from("cats".as_bytes());
 
-        // This only checks that the function runs without panic.
-        genesis_beacon_block(state_root, &spec);
+        let block = genesis_beacon_block(state_root, &spec);
+
+        assert_eq!(block.state_root, state_root);
     }
 
     #[test]