diff --git a/apps/openmw/mwgui/class.cpp b/apps/openmw/mwgui/class.cpp
index feabddd05..d4ab74a98 100644
--- a/apps/openmw/mwgui/class.cpp
+++ b/apps/openmw/mwgui/class.cpp
@@ -10,6 +10,9 @@
 #include <boost/algorithm/string.hpp>
 #include <boost/lexical_cast.hpp>
 
+#undef min
+#undef max
+
 using namespace MWGui;
 
 /* GenerateClassResultDialog */
diff --git a/apps/openmw/mwgui/review.cpp b/apps/openmw/mwgui/review.cpp
index 74632134a..c165d942e 100644
--- a/apps/openmw/mwgui/review.cpp
+++ b/apps/openmw/mwgui/review.cpp
@@ -10,6 +10,9 @@
 
 #include <cmath>
 
+#undef min
+#undef max
+
 using namespace MWGui;
 using namespace Widgets;