diff --git a/src/RideFile.cpp b/src/RideFile.cpp
index 839736254..f571103a8 100644
--- a/src/RideFile.cpp
+++ b/src/RideFile.cpp
@@ -154,7 +154,7 @@ RideFile *RideFileFactory::openRideFile(QFile &file,
     RideFileReader *reader = readFuncs_.value(suffix.toLower());
     assert(reader);
     RideFile *result = reader->openRideFile(file, errors);
-    if (result)
+    if (result && result->intervals().empty())
         result->fillInIntervals();
     return result;
 }