diff --git a/src/driver/drv_pixelAnim.c b/src/driver/drv_pixelAnim.c
index 91674ecf1..eb7ced3a4 100644
--- a/src/driver/drv_pixelAnim.c
+++ b/src/driver/drv_pixelAnim.c
@@ -9,6 +9,7 @@
 #include "../logging/logging.h"
 #include "drv_local.h"
 #include "../hal/hal_pins.h"
+#include <math.h>
 
 /*
 // Usage: