diff --git a/ApplicationCode/ModelVisualization/RivCellEdgeGeometryUtils.cpp b/ApplicationCode/ModelVisualization/RivCellEdgeGeometryUtils.cpp
index a9c8e58444..57da9befa5 100644
--- a/ApplicationCode/ModelVisualization/RivCellEdgeGeometryUtils.cpp
+++ b/ApplicationCode/ModelVisualization/RivCellEdgeGeometryUtils.cpp
@@ -180,7 +180,7 @@ void RivCellEdgeGeometryUtils::addCellEdgeResultsToDrawableGeo(
 
 bool RivCellEdgeGeometryUtils::hideScalarValue(double scalarValue, double scalarValueToHide, double tolerance)
 {
-    return (scalarValue == HUGE_VAL || abs(scalarValue - scalarValueToHide) <= scalarValueToHide*tolerance);
+    return (scalarValue == HUGE_VAL || cvf::Math::abs(scalarValue - scalarValueToHide) <= scalarValueToHide*tolerance);
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ProjectDataModel/RimReservoirCellResultsStorage.cpp b/ApplicationCode/ProjectDataModel/RimReservoirCellResultsStorage.cpp
index aefe900f98..54f722fa07 100644
--- a/ApplicationCode/ProjectDataModel/RimReservoirCellResultsStorage.cpp
+++ b/ApplicationCode/ProjectDataModel/RimReservoirCellResultsStorage.cpp
@@ -1107,7 +1107,7 @@ double riMult(double transResults, double riTransResults)
 
     if (riTransResults == 0.0)
     {
-        if (abs (transResults)  < 1e-12)
+        if (cvf::Math::abs (transResults)  < 1e-12)
         {
             return 1.0;
         }
@@ -1540,4 +1540,4 @@ RimReservoirCellResultsStorageEntryInfo::RimReservoirCellResultsStorageEntryInfo
 RimReservoirCellResultsStorageEntryInfo::~RimReservoirCellResultsStorageEntryInfo()
 {
 
-}
\ No newline at end of file
+}