diff --git a/input.py b/input.py
index 2f9b86fa59999dd0cff9921f09827e6cfcc4c847..cee22801c5444fef40346b9910c18309f3be15ca 100644
--- a/input.py
+++ b/input.py
@@ -156,7 +156,7 @@ single_data["Case b:x"] = FluxDataSingle(
             "0.49761166908056337 0.49761166908056337 -2.495196349669178"),
         dissipation_neg_str=("-1.6768551393982627 4.823974372333487 "
             "3.9976117689805504 3.9976117689805504 -22.145196359962693"),
-        weno_flux_str=("4.353710219799678 12.247948547685105 "
+        weno_flux_str=("-4.353710219799678 12.247948547685105 "
             "8.995223438061114 8.995223438061114 -51.390392709631875"),
         direction="x")