diff --git a/multi_camera_grabber/ex-multi_camera_grabber.cpp b/multi_camera_grabber/ex-multi_camera_grabber.cpp
index 962c4cd..947ef5d 100644
--- a/multi_camera_grabber/ex-multi_camera_grabber.cpp
+++ b/multi_camera_grabber/ex-multi_camera_grabber.cpp
@@ -31,6 +31,8 @@
 #include <memory>
 #include <chrono>
 #include <vector>
+#include <ctime>
+#include <iomanip>
 #include <ifm3d/camera.h>
 #include <ifm3d/fg.h>
 #include <ifm3d/image.h>
diff --git a/timestamp/ex-timestamp.cpp b/timestamp/ex-timestamp.cpp
index 5e12b97..f71a902 100644
--- a/timestamp/ex-timestamp.cpp
+++ b/timestamp/ex-timestamp.cpp
@@ -22,6 +22,8 @@
 
 #include <iostream>
 #include <memory>
+#include <ctime>
+#include <iomanip>
 #include <ifm3d/camera.h>
 #include <ifm3d/fg.h>
 #include <ifm3d/image.h>