diff --git a/src/WallpaperEngine/Audio/CAudioStream.h b/src/WallpaperEngine/Audio/CAudioStream.h
index 81067ed..554b96e 100644
--- a/src/WallpaperEngine/Audio/CAudioStream.h
+++ b/src/WallpaperEngine/Audio/CAudioStream.h
@@ -16,6 +16,11 @@ extern "C" {
 
 #include "WallpaperEngine/Audio/CAudioContext.h"
 
+// TODO: FIND A BETTER PLACE TO DO THIS? OLD_API MIGHT EXIST BUT THIS DEFINE MIGHT NOT BE DEFINED...
+#ifndef FF_API_FIFO_OLD_API
+#define 	FF_API_FIFO_OLD_API   (LIBAVUTIL_VERSION_MAJOR < 59)
+#endif
+
 namespace WallpaperEngine::Audio {
 class CAudioContext;
 
diff --git a/src/common.h b/src/common.h
index ae958c1..d8481f9 100644
--- a/src/common.h
+++ b/src/common.h
@@ -2,8 +2,3 @@
 
 #include "WallpaperEngine/Core/Wallpapers/CWeb.h"
 #include "WallpaperEngine/Logging/CLog.h"
-
-// TODO: FIND A BETTER PLACE TO DO THIS? OLD_API MIGHT EXIST BUT THIS DEFINE MIGHT NOT BE DEFINED...
-#ifndef FF_API_FIFO_OLD_API
-#define 	FF_API_FIFO_OLD_API   (LIBAVUTIL_VERSION_MAJOR < 59)
-#endif
\ No newline at end of file