diff --git a/src/fusion/definitions.h b/src/fusion/definitions.h
index 6dd738a..85ddb18 100644
--- a/src/fusion/definitions.h
+++ b/src/fusion/definitions.h
@@ -8,7 +8,7 @@
 #ifndef DEFINITIONS_H_
 #define DEFINITIONS_H_
 
-
+#include <limits>
 #define UNENDLICH std::numeric_limits<float>::infinity()
 
 //#define CRAPPY_LAPPY
diff --git a/src/onlinefusionviewer.cpp b/src/onlinefusionviewer.cpp
index 41ca5ed..6a31457 100755
--- a/src/onlinefusionviewer.cpp
+++ b/src/onlinefusionviewer.cpp
@@ -6,6 +6,7 @@
  */
 #include <GL/glew.h>
 #include "onlinefusionviewer.hpp"
+#include <QGLViewer/manipulatedFrame.h>
 #include <math.h>
 #include <QMenu>
 #include <QKeyEvent>