diff --git a/ImageProcessing.cpp b/ImageProcessing.cpp
index 2e25dff..6b0c3cb 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 7f3a6f9..7622bd8 100644
--- a/Manager.cpp
+++ b/Manager.cpp
@@ -246,8 +246,18 @@ void Manager::capture () {
   QList<QScreen *> screens = QApplication::screens ();
   foreach (QScreen * screen, screens) {
     QRect geometry = screen->availableGeometry ();
-    QPixmap pixmap = screen->grabWindow (0, geometry.x (), geometry.y (),
+    #if QT_VERSION >= QT_VERSION_CHECK(5,10,0)
+    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 (),
+                                         geometry.width (), geometry.height ());
+        #else
+        assert c(0 && "Qt version is too small");
+    #endif
+    #endif
+
     QString name = screen->name ();
     if (!selections_.contains (name)) {
       SelectionDialog *selection = new SelectionDialog (*dictionary_);