diff --git a/tqsl/src/tqslconvert.cpp b/tqsl/src/tqslconvert.cpp
index 378e18d..1bb74ef 100644
--- a/tqsl/src/tqslconvert.cpp
+++ b/tqsl/src/tqslconvert.cpp
@@ -651,6 +651,9 @@ static bool open_db(TQSL_CONVERTER *conv, bool readonly) {
 			dbinit_cleanup = true;
 			goto dbinit_end;
 		}
+#ifndef DB_CURSOR_BULK
+#define DB_CURSOR_BULK 0
+#endif
 		if (!conv->cursor) {
 			int err = conv->seendb->cursor(conv->seendb, conv->txn, &conv->cursor, DB_CURSOR_BULK);
 			if (err) {