diff --git a/src/kits/interface/Shape.cpp b/src/kits/interface/Shape.cpp
index 90cdb402fe..303efda790 100644
--- a/src/kits/interface/Shape.cpp
+++ b/src/kits/interface/Shape.cpp
@@ -576,7 +576,7 @@ void BShape::InitData()
 
 #if __GNUC__ < 3
 
-BRect
+extern "C" BRect
 Bounds__6BShape(BShape *self)
 {
 	return self->Bounds();