diff --git a/linux/firewire/JackFFADOMidiInputPort.cpp b/linux/firewire/JackFFADOMidiInputPort.cpp
index 3923bbe0..080b269b 100644
--- a/linux/firewire/JackFFADOMidiInputPort.cpp
+++ b/linux/firewire/JackFFADOMidiInputPort.cpp
@@ -21,6 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 #include "JackFFADOMidiInputPort.h"
 #include "JackMidiUtil.h"
+#include "JackError.h"
 
 using Jack::JackFFADOMidiInputPort;
 
diff --git a/linux/firewire/JackFFADOMidiOutputPort.cpp b/linux/firewire/JackFFADOMidiOutputPort.cpp
index b916c8c5..d4a0899d 100644
--- a/linux/firewire/JackFFADOMidiOutputPort.cpp
+++ b/linux/firewire/JackFFADOMidiOutputPort.cpp
@@ -21,6 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 #include "JackFFADOMidiOutputPort.h"
 #include "JackMidiUtil.h"
+#include "JackError.h"
 
 using Jack::JackFFADOMidiOutputPort;