diff --git a/modules/video_filter/adjust.c b/modules/video_filter/adjust.c
index 0cc7238a02..79dc1c6abc 100644
--- a/modules/video_filter/adjust.c
+++ b/modules/video_filter/adjust.c
@@ -41,10 +41,6 @@
 
 #include "adjust_sat_hue.h"
 
-#ifndef M_PI
-#   define M_PI 3.14159265358979323846
-#endif
-
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/