small compile fix

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4581 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/mathed/math_boxinset.C b/src/mathed/math_boxinset.C
index 19ccbad82b727af61a4cbfd9748bd96b08a8b748..3c675a60285105e689c0c22e86dbfa0aa06269f2 100644 (file)
--- a/src/mathed/math_boxinset.C
+++ b/src/mathed/math_boxinset.C
@@ -8,6 +8,7 @@
 #include "math_support.h"
 #include "math_mathmlstream.h"
 #include "math_streamstr.h"
+#include "support/LOstream.h"
 
 
 MathBoxInset::MathBoxInset(string const & name)