diff --git a/qbsp/brush.cc b/qbsp/brush.cc
index 2c96f9e0..713d0792 100644
--- a/qbsp/brush.cc
+++ b/qbsp/brush.cc
@@ -21,6 +21,7 @@
 */
 
 #include <cstring>
+#include <list>
 
 #include <qbsp/qbsp.hh>