diff --git a/src/3rdparty/sqlite3.c b/src/3rdparty/sqlite3.c
index deef460899..8d473d32b7 100644
--- a/src/3rdparty/sqlite3.c
+++ b/src/3rdparty/sqlite3.c
@@ -23442,6 +23442,9 @@ static int posixFchown(int fd, uid_t uid, gid_t gid){
 /* Forward reference */
 static int openDirectory(const char*, int*);
 
+/* fix compile on FreeBSD, not sure why needed... */
+int fchmod(int, mode_t);
+
 /*
 ** Many system calls are accessed through pointer-to-functions so that
 ** they may be overridden at runtime to facilitate fault injection during