diff --git a/examples/config/phase/W.yaml b/examples/config/phase/W.yaml
index 8be7d38a6..740fe0992 100644
--- a/examples/config/phase/W.yaml
+++ b/examples/config/phase/W.yaml
@@ -1,4 +1,4 @@
 references:
   - https://en.wikipedia.org/wiki/Tungsten
-lattice: cF
+lattice: cI
 rho: 19300.0