diff --git a/racket/src/ChezScheme/c/expeditor.c b/racket/src/ChezScheme/c/expeditor.c
index c064696436..faef7ebb94 100644
--- a/racket/src/ChezScheme/c/expeditor.c
+++ b/racket/src/ChezScheme/c/expeditor.c
@@ -548,7 +548,6 @@ static void s_ee_write_char(wchar_t c) {
 #endif
 #include <termios.h>
 #include <signal.h>
-#include <time.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <wchar.h>
diff --git a/racket/src/ChezScheme/c/externs.h b/racket/src/ChezScheme/c/externs.h
index 54a8979988..2a3f34aec3 100644
--- a/racket/src/ChezScheme/c/externs.h
+++ b/racket/src/ChezScheme/c/externs.h
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <time.h>
 
 #ifndef WIN32
 #include <unistd.h>
diff --git a/racket/src/ChezScheme/c/prim5.c b/racket/src/ChezScheme/c/prim5.c
index 29464c8107..04ca6a88ef 100644
--- a/racket/src/ChezScheme/c/prim5.c
+++ b/racket/src/ChezScheme/c/prim5.c
@@ -21,7 +21,6 @@
 #include <sys/stat.h>
 #include <limits.h>
 #include <ctype.h>
-#include <time.h>
 
 /* locally defined functions */
 static INT s_errno PROTO((void));
diff --git a/racket/src/ChezScheme/c/scheme.c b/racket/src/ChezScheme/c/scheme.c
index b231ff0244..6220c477e5 100644
--- a/racket/src/ChezScheme/c/scheme.c
+++ b/racket/src/ChezScheme/c/scheme.c
@@ -20,7 +20,6 @@
 #include <limits.h>
 #ifdef WIN32
 #include <io.h>
-#include <time.h>
 #else
 #include <sys/time.h>
 #endif
diff --git a/racket/src/ChezScheme/c/stats.c b/racket/src/ChezScheme/c/stats.c
index 9413c3bfb8..01c9da7fdd 100644
--- a/racket/src/ChezScheme/c/stats.c
+++ b/racket/src/ChezScheme/c/stats.c
@@ -36,8 +36,6 @@
 #include <sys/resource.h>
 #endif
 
-#include <time.h>
-
 static struct timespec starting_mono_tp;
 
 static long adjust_time_zone(ptr dtvec, struct tm *tmxp, ptr given_tzoff);