diff --git a/libc/unistd/pread.c b/libc/unistd/pread.c
index d2f71f7..b55623e 100644
--- a/libc/unistd/pread.c
+++ b/libc/unistd/pread.c
@@ -25,10 +25,10 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-extern int __pread64(int fd, void *buf, size_t nbytes, off_t lo, off_t hi);
+extern int __pread64(int fd, void *buf, size_t nbytes, loff_t offset);
 
 ssize_t pread(int fd, void *buf, size_t nbytes, off_t offset)
 {
-    return __pread64(fd, buf, nbytes, offset, 0);
+    return __pread64(fd, buf, nbytes, offset);
 }
 
diff --git a/libc/unistd/pwrite.c b/libc/unistd/pwrite.c
index 5adf40a..ea080d2 100644
--- a/libc/unistd/pwrite.c
+++ b/libc/unistd/pwrite.c
@@ -28,10 +28,10 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-extern int __pwrite64(int fd, void *buf, size_t nbytes, off_t lo, off_t hi);
+extern int __pwrite64(int fd, void *buf, size_t nbytes, loff_t offset);
 
 ssize_t pwrite(int fd, void *buf, size_t nbytes, off_t offset)
 {
-    return __pwrite64(fd, buf, nbytes, offset, 0);
+    return __pwrite64(fd, buf, nbytes, offset);
 }