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-rw-r--r--src/components/heartrate/Ppg.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/components/heartrate/Ppg.h b/src/components/heartrate/Ppg.h
index 2f8a1faa..4492b2c2 100644
--- a/src/components/heartrate/Ppg.h
+++ b/src/components/heartrate/Ppg.h
@@ -5,8 +5,9 @@
#include <cstdint>
// Note: Change internal define 'sqrt_internal sqrt' to
// 'sqrt_internal sqrtf' to save ~3KB of flash.
+#define sqrt_internal sqrtf
#define FFT_SPEED_OVER_PRECISION
-#include "libs/arduinoFFT-develop/src/arduinoFFT.h"
+#include "libs/arduinoFFT/src/arduinoFFT.h"
namespace Pinetime {
namespace Controllers {