diff --git a/plugins/dynamics_processor/dynamics_processor.cpp b/plugins/dynamics_processor/dynamics_processor.cpp
index e825cfe8d..9954c92e5 100644
--- a/plugins/dynamics_processor/dynamics_processor.cpp
+++ b/plugins/dynamics_processor/dynamics_processor.cpp
@@ -30,15 +30,6 @@
 
 #include "embed.cpp"
 
-#if defined (LMMS_BUILD_WIN32) || defined (LMMS_BUILD_APPLE) 
-#ifndef isnanf
-#define isnanf(x)	isnan(x)
-#endif
-#ifndef isinff
-#define isinff(x)	isinf(x)
-#endif
-#endif
-
 extern "C"
 {