diff --git a/SignalProcessing/FIRFilter.hpp b/SignalProcessing/FIRFilter.hpp
index c2f91cd18..23f7fd3ca 100644
--- a/SignalProcessing/FIRFilter.hpp
+++ b/SignalProcessing/FIRFilter.hpp
@@ -11,6 +11,7 @@
 
 #ifdef __APPLE__
 #include <Accelerate/Accelerate.h>
+#define USE_ACCELERATE
 #endif
 
 #include <vector>
@@ -50,7 +51,7 @@ class FIRFilter {
 			@returns The result of applying the filter.
 		*/
 		inline short apply(const short *src, size_t stride = 1) const {
-			#ifdef __APPLE__
+			#ifdef USE_ACCELERATE
 				short result;
 				vDSP_dotpr_s1_15(filter_coefficients_.data(), 1, src, vDSP_Stride(stride), &result, filter_coefficients_.size());
 				return result;