diff --git a/octovis/src/SelectionBox.cpp b/octovis/src/SelectionBox.cpp
index 4200be8b..14e332a2 100644
--- a/octovis/src/SelectionBox.cpp
+++ b/octovis/src/SelectionBox.cpp
@@ -26,6 +26,7 @@
 // workaround for Windows
 #define NOMINMAX
 #include <octovis/SelectionBox.h>
+#include <QGLViewer/manipulatedFrame.h>
 
 namespace octomap{
 
diff --git a/octovis/src/ViewerWidget.cpp b/octovis/src/ViewerWidget.cpp
index d72227ad..0539ba0c 100644
--- a/octovis/src/ViewerWidget.cpp
+++ b/octovis/src/ViewerWidget.cpp
@@ -24,6 +24,7 @@
  */
 
 #include <octovis/ViewerWidget.h>
+#include <QGLViewer/manipulatedCameraFrame.h>
 
 #ifndef M_PI_2
 #define M_PI_2 1.5707963267948966192E0