diff --git a/src/netimport/NIFrame.cpp b/src/netimport/NIFrame.cpp
index c8e5c7426717..0c9a43f09d1b 100644
--- a/src/netimport/NIFrame.cpp
+++ b/src/netimport/NIFrame.cpp
@@ -461,6 +461,10 @@ NIFrame::checkOptions(OptionsCont& oc) {
     if (oc.getBool("osm.crossings") && !oc.getBool("osm.sidewalks")) {
         WRITE_WARNING(TL("It is recommend to use option osm.crossings with osm.sidewalks"));
     }
+    if (oc.isSet("shapefile-prefix") && !oc.isDefault("shapefile.name")) {
+        oc.setDefault("output.street-names", "true");
+    }
+
     return ok;
 }