diff --git a/tests/Filters/Filter_DeEmbed.cpp b/tests/Filters/Filter_DeEmbed.cpp
index 8694a9a4..a83b06ad 100644
--- a/tests/Filters/Filter_DeEmbed.cpp
+++ b/tests/Filters/Filter_DeEmbed.cpp
@@ -43,10 +43,9 @@
 #include "../../lib/scopeprotocols/scopeprotocols.h"
 #include "Filters.h"
 
-#include <ffts.h>
-
 //TODO: switch to FFTW since test case is OK to be GPL
 #ifndef _APPLE_SILICON
+#include <ffts.h>
 
 using namespace std;