diff --git a/ImageProcessing.cpp b/ImageProcessing.cpp
index 6b0c3cb..2e25dff 100644
--- a/ImageProcessing.cpp
+++ b/ImageProcessing.cpp
@@ -2,11 +2,11 @@
 
 #include <leptonica/allheaders.h>
 
+#include <tesseract/host.h>
+
 #include "ImageProcessing.h"
 #include "StAssert.h"
 
-#define MAX_INT16 32767
-
 #if defined(Q_OS_LINUX)
 #  include <fstream>
 #  include <limits>
diff --git a/Manager.cpp b/Manager.cpp
index 7622bd8..5121154 100644
--- a/Manager.cpp
+++ b/Manager.cpp
@@ -250,12 +250,8 @@ void Manager::capture () {
     QPixmap pixmap = screen->grabWindow (0, 0, 0,
                                          geometry.width (), geometry.height ());
     #else
-        #if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
-        QPixmap pixmap = screen->grabWindow (0, geometry.x (), geometry.y (),
+    QPixmap pixmap = screen->grabWindow (0, geometry.x (), geometry.y (),
                                          geometry.width (), geometry.height ());
-        #else
-        assert c(0 && "Qt version is too small");
-    #endif
     #endif
 
     QString name = screen->name ();