diff --git a/save-xml.c b/save-xml.c
index 0fdb39091..166885861 100644
--- a/save-xml.c
+++ b/save-xml.c
@@ -555,7 +555,7 @@ void save_dives_buffer(struct membuffer *b, const bool select_only)
 		if (ds->taxonomy.nr) {
 			for (int j = 0; j < ds->taxonomy.nr; j++) {
 				struct taxonomy *t = &ds->taxonomy.category[j];
-				if (t->category != TC_NONE) {
+				if (t->category != TC_NONE && t->value) {
 					put_format(b, "  <geo cat='%d'", t->category);
 					put_format(b, " origin='%d'", t->origin);
 					show_utf8(b, t->value, " value='", "'/>\n", 1);