diff --git a/opm/simulators/utils/UnsupportedFlowKeywords.cpp b/opm/simulators/utils/UnsupportedFlowKeywords.cpp
index 095860742..c294a8e91 100644
--- a/opm/simulators/utils/UnsupportedFlowKeywords.cpp
+++ b/opm/simulators/utils/UnsupportedFlowKeywords.cpp
@@ -109,8 +109,6 @@ const KeywordValidation::UnsupportedKeywords& unsupportedKeywords()
         {"COORDSYS", {false, std::string{"Multiple grid systems not supported, COORDSYS is ignored."}}},
         {"COPYBOX", {true, std::nullopt}},
         {"CRITPERM", {true, std::nullopt}},
-        {"DATUMR", {true, std::nullopt}},
-        {"DATUMRX", {true, std::nullopt}},
         {"DCQDEFN", {true, std::nullopt}},
         {"DEBUG", {false, std::nullopt}},
         {"DELAYACT", {true, std::nullopt}},