diff --git a/ApplicationCode/Commands/RicImportFormationNamesFeature.cpp b/ApplicationCode/Commands/RicImportFormationNamesFeature.cpp
index 34ee624154..aac802428e 100644
--- a/ApplicationCode/Commands/RicImportFormationNamesFeature.cpp
+++ b/ApplicationCode/Commands/RicImportFormationNamesFeature.cpp
@@ -74,9 +74,10 @@ void RicImportFormationNamesFeature::onActionTriggered(bool isChecked)
     }
 
     // For each file, find existing Formation names item, or create new
-
     RimFormationNames* formationName = fomNameColl->importFiles(fileNames);
 
+    if (fileNames.size() > 1) return;
+
     std::vector<RimCase*> cases;
     proj->allCases(cases);