diff --git a/src/kits/support/DataIO.cpp b/src/kits/support/DataIO.cpp
index a887ef05e5..1a91e66125 100644
--- a/src/kits/support/DataIO.cpp
+++ b/src/kits/support/DataIO.cpp
@@ -154,6 +154,7 @@ BPositionIO::GetSize(off_t* size) const
 
 
 // FBC
+extern "C" void _ReservedPositionIO1__11BPositionIO() {}
 void BPositionIO::_ReservedPositionIO2(){}
 void BPositionIO::_ReservedPositionIO3(){}
 void BPositionIO::_ReservedPositionIO4(){}