diff --git a/linux/JackLinuxTime.c b/linux/JackLinuxTime.c
index 341663b3..8466ce0b 100644
--- a/linux/JackLinuxTime.c
+++ b/linux/JackLinuxTime.c
@@ -23,6 +23,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 #endif
 
 #include "JackTime.h"
+#include "JackTypes.h"
 #include <unistd.h>
 
 SERVER_EXPORT void JackSleep(long usec) 
diff --git a/solaris/JackSolarisTime.c b/solaris/JackSolarisTime.c
index c21a3620..46fa0fcf 100644
--- a/solaris/JackSolarisTime.c
+++ b/solaris/JackSolarisTime.c
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
 
 #include "JackTime.h"
+#include "JackTypes.h"
 #include <unistd.h>
 #include <time.h>
 
diff --git a/windows/JackWinTime.c b/windows/JackWinTime.c
index e524e4fc..e952410b 100644
--- a/windows/JackWinTime.c
+++ b/windows/JackWinTime.c
@@ -20,6 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 #include <windows.h>
 #include "JackTime.h"
+#include "JackTypes.h"
 #include "JackError.h"
 
 static LARGE_INTEGER _jack_freq;