diff --git a/dumux/material/fluidsystems/brineco2.hh b/dumux/material/fluidsystems/brineco2.hh
index b6afa306b897c02f82f992b9134a7314f61b6412..d01417d8ef2ca24c67d81f7c2af3241080af853a 100644
--- a/dumux/material/fluidsystems/brineco2.hh
+++ b/dumux/material/fluidsystems/brineco2.hh
@@ -398,7 +398,7 @@ public:
         Scalar xlCO2, xgCO2;
         Brine_CO2::calculateMoleFractions(temperature,
                                           pressure,
-                                          BrineRawComponent::salinity,
+                                          BrineRawComponent::constantSalinity,
                                           /*knowgasPhaseIdx=*/-1,
                                           xlCO2,
                                           xgH2O);