diff --git a/ApplicationCode/ProjectDataModel/RimWellLogTrack.cpp b/ApplicationCode/ProjectDataModel/RimWellLogTrack.cpp
index c365c42f4c..4c7b302999 100644
--- a/ApplicationCode/ProjectDataModel/RimWellLogTrack.cpp
+++ b/ApplicationCode/ProjectDataModel/RimWellLogTrack.cpp
@@ -1353,7 +1353,10 @@ void RimWellLogTrack::findFormationNamesToPlot(const CurveSamplingPointData&
 
     for (double nameIdx : curveData.data)
     {
-        formationNameIndicesFromCurve.push_back(round(nameIdx));
+        if (nameIdx != HUGE_VAL)
+        {
+            formationNameIndicesFromCurve.push_back(round(nameIdx));
+        }
     }
 
     if (formationNameIndicesFromCurve.empty()) return;