diff --git a/cmAudioFileDev.c b/cmAudioFileDev.c
index 0e3dc85..34ca584 100644
--- a/cmAudioFileDev.c
+++ b/cmAudioFileDev.c
@@ -2,6 +2,7 @@
 #include "cmFloatTypes.h"
 #include "cmRpt.h"
 #include "cmErr.h"
+#include "cmCtx.h"
 #include "cmMem.h"
 #include "cmMallocDebug.h"
 #include "cmAudioFile.h"