diff --git a/src/widget.cpp b/src/widget.cpp
index 7ad67ab32..141497f79 100644
--- a/src/widget.cpp
+++ b/src/widget.cpp
@@ -24,9 +24,13 @@
 //FIXME: this should be removed when the scrolling is cleaned
 #include "user_config.hpp"
 
+#include "constants.hpp"
 #include <cmath>
 #include <iostream>
 
+const float Widget::MAX_TEXT_SCALE = 1.2f;
+const float Widget::MIN_TEXT_SCALE = 1.0f;
+
 const GLfloat WGT_WHITE  [4] = { 1.0f, 1.0f, 1.0f, 1.0f };
 const GLfloat WGT_GRAY   [4] = { 0.5f, 0.5f, 0.5f, 1.0f };
 const GLfloat WGT_BLACK  [4] = { 0.0f, 0.0f, 0.0f, 1.0f };
diff --git a/src/widget.hpp b/src/widget.hpp
index a8a6bda05..237f6084b 100644
--- a/src/widget.hpp
+++ b/src/widget.hpp
@@ -27,6 +27,10 @@
 #ifdef __APPLE__
 #  include <OpenGL/gl.h>
 #else
+#  ifdef WIN32
+#    define WIN32_LEAN_AND_MEAN
+#    include <windows.h>
+#  endif
 #  include <GL/gl.h>
 #endif
 
@@ -115,8 +119,8 @@ class Widget
 
     /* Delta time dependant features, these deactivate after a certain time,
      * and are dependant on the delta time. They have animations. */
-    static const float MAX_TEXT_SCALE = 1.2f;
-    static const float MIN_TEXT_SCALE = 1.0f;
+    static const float MAX_TEXT_SCALE;
+    static const float MIN_TEXT_SCALE;
     float m_text_scale; //Used for the pulse effect
 
 /*public:*/