diff --git a/ApplicationLibCode/Commands/RicElasticPropertiesImportTools.cpp b/ApplicationLibCode/Commands/RicElasticPropertiesImportTools.cpp
index e433a40253..1fba26238e 100644
--- a/ApplicationLibCode/Commands/RicElasticPropertiesImportTools.cpp
+++ b/ApplicationLibCode/Commands/RicElasticPropertiesImportTools.cpp
@@ -103,9 +103,10 @@ void RicElasticPropertiesImportTools::importElasticPropertiesFromFile( const QSt
         // Group the items with a given facies key
         for ( RifElasticProperties item : rifElasticProperties )
         {
-            if ( item.fieldName == fieldName &&
-                 ( item.formationName == formationName || item.formationName == formationWildCard ) &&
-                 item.faciesName == faciesName )
+            if ( item.fieldName.compare( fieldName, Qt::CaseInsensitive ) == 0 &&
+                 ( item.formationName.compare( formationName, Qt::CaseInsensitive ) == 0 ||
+                   item.formationName == formationWildCard ) &&
+                 item.faciesName.compare( faciesName, Qt::CaseInsensitive ) == 0 )
             {
                 matchingFacies.push_back( item );
             }
diff --git a/ApplicationLibCode/ProjectDataModel/StimPlanModel/RimElasticProperties.h b/ApplicationLibCode/ProjectDataModel/StimPlanModel/RimElasticProperties.h
index 12721b5983..46852da313 100644
--- a/ApplicationLibCode/ProjectDataModel/StimPlanModel/RimElasticProperties.h
+++ b/ApplicationLibCode/ProjectDataModel/StimPlanModel/RimElasticProperties.h
@@ -81,5 +81,20 @@ private:
     caf::PdmChildField<RimElasticPropertyScalingCollection*> m_scalings;
     caf::PdmField<bool>                                      m_showScaledProperties;
 
-    std::map<FaciesKey, RigElasticProperties> m_properties;
+    struct CaseInsensitiveFaciesKeyCompare
+    {
+        bool operator()( const FaciesKey& f1, const FaciesKey& f2 ) const
+        {
+            int fieldCompare = std::get<0>( f1 ).compare( std::get<0>( f2 ), Qt::CaseInsensitive );
+            if ( fieldCompare != 0 ) return fieldCompare < 0;
+
+            int formationCompare = std::get<1>( f1 ).compare( std::get<1>( f2 ), Qt::CaseInsensitive );
+            if ( formationCompare != 0 ) return formationCompare < 0;
+
+            int faciesCompare = std::get<2>( f1 ).compare( std::get<2>( f2 ), Qt::CaseInsensitive );
+            return faciesCompare < 0;
+        }
+    };
+
+    std::map<FaciesKey, RigElasticProperties, CaseInsensitiveFaciesKeyCompare> m_properties;
 };