diff --git a/lib/StreamHandlerPortableMap.cpp b/lib/StreamHandlerPortableMap.cpp
index c7f04dd..9784b96 100644
--- a/lib/StreamHandlerPortableMap.cpp
+++ b/lib/StreamHandlerPortableMap.cpp
@@ -24,6 +24,7 @@
  */
 
 #include <cstdio>
+#include <cmath>
 #include "StreamHandlerPortableMap.h"
 #include "PlaYUVerFrame.h"
 #include "PlaYUVerFramePixelFormats.h"