diff --git a/common_types.h b/common_types.h
index f717094092..97707064c6 100644
--- a/common_types.h
+++ b/common_types.h
@@ -30,10 +30,6 @@
 #pragma warning(disable : 4351)
 #endif
 
-#ifndef NULL
-#define NULL 0
-#endif
-
 #define RTP_PAYLOAD_NAME_SIZE 32u
 
 #if defined(WEBRTC_WIN) || defined(WIN32)
diff --git a/modules/video_capture/video_capture_defines.h b/modules/video_capture/video_capture_defines.h
index a87f5ee2f9..ec5bf24e4c 100644
--- a/modules/video_capture/video_capture_defines.h
+++ b/modules/video_capture/video_capture_defines.h
@@ -17,10 +17,6 @@
 
 namespace webrtc
 {
-// Defines
-#ifndef NULL
-    #define NULL    0
-#endif
 
 enum {kVideoCaptureUniqueNameLength =1024}; //Max unique capture device name lenght
 enum {kVideoCaptureDeviceNameLength =256}; //Max capture device name lenght