diff --git a/libc/isystem/utime.h b/libc/isystem/utime.h
index 7d29787c7..1b11e6957 100644
--- a/libc/isystem/utime.h
+++ b/libc/isystem/utime.h
@@ -1,4 +1,5 @@
 #ifndef COSMOPOLITAN_LIBC_ISYSTEM_UTIME_H_
 #define COSMOPOLITAN_LIBC_ISYSTEM_UTIME_H_
+#include "libc/time/struct/utimbuf.h"
 #include "libc/time/time.h"
 #endif /* COSMOPOLITAN_LIBC_ISYSTEM_UTIME_H_ */