diff --git a/src/internal/animations/NeoPixelAnimator.cpp b/src/internal/animations/NeoPixelAnimator.cpp
index 446bc4a..1cbfba3 100644
--- a/src/internal/animations/NeoPixelAnimator.cpp
+++ b/src/internal/animations/NeoPixelAnimator.cpp
@@ -25,6 +25,7 @@ License along with NeoPixel.  If not, see
 -------------------------------------------------------------------------*/
 
 #include <Arduino.h>
+#include "../NeoUtil.h"
 #include "NeoPixelAnimator.h"
 
 NeoPixelAnimator::NeoPixelAnimator(uint16_t countAnimations, uint16_t timeScale) :