diff --git a/webrtc/modules/desktop_capture/mouse_cursor_monitor_win.cc b/webrtc/modules/desktop_capture/mouse_cursor_monitor_win.cc
index 1457bf3b19..fd0b222a3a 100644
--- a/webrtc/modules/desktop_capture/mouse_cursor_monitor_win.cc
+++ b/webrtc/modules/desktop_capture/mouse_cursor_monitor_win.cc
@@ -10,6 +10,8 @@
 
 #include "webrtc/modules/desktop_capture/mouse_cursor_monitor.h"
 
+#include <assert.h>
+
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/mouse_cursor.h"
 #include "webrtc/modules/desktop_capture/win/cursor.h"
diff --git a/webrtc/modules/desktop_capture/win/screen_capture_utils.cc b/webrtc/modules/desktop_capture/win/screen_capture_utils.cc
index 4487e6d549..1b33545277 100644
--- a/webrtc/modules/desktop_capture/win/screen_capture_utils.cc
+++ b/webrtc/modules/desktop_capture/win/screen_capture_utils.cc
@@ -10,6 +10,7 @@
 
 #include "webrtc/modules/desktop_capture/win/screen_capture_utils.h"
 
+#include <assert.h>
 #include <windows.h>
 
 namespace webrtc {
diff --git a/webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.cc b/webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.cc
index 5ab255337b..9cb3681fd2 100644
--- a/webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.cc
+++ b/webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.cc
@@ -10,6 +10,8 @@
 
 #include "webrtc/modules/desktop_capture/win/screen_capturer_win_gdi.h"
 
+#include <assert.h>
+
 #include "webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/desktop_frame_win.h"
diff --git a/webrtc/modules/desktop_capture/win/screen_capturer_win_magnifier.cc b/webrtc/modules/desktop_capture/win/screen_capturer_win_magnifier.cc
index 4ce0073280..042cb937ac 100644
--- a/webrtc/modules/desktop_capture/win/screen_capturer_win_magnifier.cc
+++ b/webrtc/modules/desktop_capture/win/screen_capturer_win_magnifier.cc
@@ -10,6 +10,8 @@
 
 #include "webrtc/modules/desktop_capture/win/screen_capturer_win_magnifier.h"
 
+#include <assert.h>
+
 #include "webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/desktop_frame_win.h"