diff --git a/common/JackChannel.h b/common/JackChannel.h
index 4121e941..eebd7106 100644
--- a/common/JackChannel.h
+++ b/common/JackChannel.h
@@ -22,7 +22,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 #include "types.h"
 #include "JackError.h"
-#include "JackTransportEngine.h"
 
 namespace Jack
 {
diff --git a/common/JackFifo.cpp b/common/JackFifo.cpp
index e8c42d41..cbf13428 100755
--- a/common/JackFifo.cpp
+++ b/common/JackFifo.cpp
@@ -19,7 +19,7 @@ This program is free software; you can redistribute it and/or modify
 
 #include "JackFifo.h"
 #include "JackError.h"
-#include "JackChannel.h"
+#include "JackConstants.h"
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
diff --git a/common/JackPosixSemaphore.cpp b/common/JackPosixSemaphore.cpp
index 85b3541f..239779e6 100644
--- a/common/JackPosixSemaphore.cpp
+++ b/common/JackPosixSemaphore.cpp
@@ -18,7 +18,7 @@ This program is free software; you can redistribute it and/or modify
 */
 
 #include "JackPosixSemaphore.h"
-#include "JackChannel.h"
+#include "JackConstants.h"
 #include "JackError.h"
 #include <fcntl.h>
 #include <sys/time.h>
diff --git a/macosx/JackMachServerNotifyChannel.cpp b/macosx/JackMachServerNotifyChannel.cpp
index 7c9ab9ec..75b619f6 100644
--- a/macosx/JackMachServerNotifyChannel.cpp
+++ b/macosx/JackMachServerNotifyChannel.cpp
@@ -19,6 +19,7 @@ This program is free software; you can redistribute it and/or modify
 
 #include "JackMachServerNotifyChannel.h"
 #include "JackRPCEngineUser.c"
+#include "JackConstants.h"
 #include "JackError.h"
 
 namespace Jack