diff --git a/ApplicationCode/ReservoirDataModel/RigGeoMechWellLogExtractor.cpp b/ApplicationCode/ReservoirDataModel/RigGeoMechWellLogExtractor.cpp
index 42f26f00a9..bf147f136b 100644
--- a/ApplicationCode/ReservoirDataModel/RigGeoMechWellLogExtractor.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigGeoMechWellLogExtractor.cpp
@@ -113,7 +113,7 @@ float RigGeoMechWellLogExtractor::calculatePorePressureInSegment(int64_t interse
     double porePressure = hydroStaticPorePressureBar;
 
     // 1: Try pore pressure from the grid
-    if (porePressure == hydroStaticPorePressureBar && averageSegmentPorePressureBar != std::numeric_limits<float>::infinity())
+    if (porePressure == hydroStaticPorePressureBar && averageSegmentPorePressureBar > 0.0)
     {
         porePressure = averageSegmentPorePressureBar;
     }
@@ -137,6 +137,8 @@ float RigGeoMechWellLogExtractor::calculatePorePressureInSegment(int64_t interse
         porePressure = pascalToBar(poreElementPressuresPascal[elmIdx]);
     }
     // 4: If no pore-pressure was found, the default value of hydrostatic pore pressure is used.
+
+    CVF_ASSERT(porePressure >= 0.0);
     return porePressure;
 }