diff --git a/Headers/gnustep/base/Time.h b/Headers/gnustep/base/Time.h
index 496ef947f..4d1c169de 100644
--- a/Headers/gnustep/base/Time.h
+++ b/Headers/gnustep/base/Time.h
@@ -31,6 +31,20 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 
+#ifdef _SEQUENT_
+/* Include needed for getclock() in our replacement for gettimeofday() */
+#include <sys/timers.h>
+
+/* Include needed for tzset() in our replacement for gettimeofday() */
+#include <time.h>
+
+/* Sequent does not define struct timezone in any of it's header files */
+struct timezone {
+  int tz_minuteswest;
+  int tz_dsttime;
+};
+#endif /* _SEQUENT_ */
+
 @interface Time : Magnitude
 {
   struct timeval tv;		/* seconds and useconds */
diff --git a/Source/objects/Time.h b/Source/objects/Time.h
index 496ef947f..4d1c169de 100644
--- a/Source/objects/Time.h
+++ b/Source/objects/Time.h
@@ -31,6 +31,20 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 
+#ifdef _SEQUENT_
+/* Include needed for getclock() in our replacement for gettimeofday() */
+#include <sys/timers.h>
+
+/* Include needed for tzset() in our replacement for gettimeofday() */
+#include <time.h>
+
+/* Sequent does not define struct timezone in any of it's header files */
+struct timezone {
+  int tz_minuteswest;
+  int tz_dsttime;
+};
+#endif /* _SEQUENT_ */
+
 @interface Time : Magnitude
 {
   struct timeval tv;		/* seconds and useconds */