diff --git a/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java b/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java
index cb95e9d73a..c195b0a14e 100644
--- a/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java
+++ b/src/org/openstreetmap/josm/data/osm/AbstractPrimitive.java
@@ -952,6 +952,7 @@ public static Collection<String> getDiscardableKeys() {
                             "LINZ2OSM:layer",
                             "linz2osm:objectid",
                             "LINZ2OSM:source_version",
+                            "fid",
                             "odbl",
                             "odbl:note",
                             "osmarender:nameDirection",