diff --git a/simgear/math/Rect.hxx b/simgear/math/Rect.hxx
index 577cd8c6..d5f252f4 100644
--- a/simgear/math/Rect.hxx
+++ b/simgear/math/Rect.hxx
@@ -19,8 +19,6 @@
 #ifndef SG_RECT_HXX_
 #define SG_RECT_HXX_
 
-#include <osg/Vec2>
-
 namespace simgear
 {