2 files changed, 4 insertions, 4 deletions
diff --git a/Userland/Libraries/LibC/sys/types.h b/Userland/Libraries/LibC/sys/types.h
index 5bb4dc4150..e044904f80 100644
--- a/Userland/Libraries/LibC/sys/types.h
+++ b/Userland/Libraries/LibC/sys/types.h
@@ -55,7 +55,7 @@ typedef int id_t;
 typedef __WINT_TYPE__ wint_t;
 
 typedef uint32_t ino_t;
-typedef ssize_t off_t;
+typedef int64_t off_t;
 
 typedef uint32_t dev_t;
 typedef uint16_t mode_t;
diff --git a/Userland/Libraries/LibC/unistd.cpp b/Userland/Libraries/LibC/unistd.cpp
index e6a29bc41b..e20c49d4c1 100644
--- a/Userland/Libraries/LibC/unistd.cpp
+++ b/Userland/Libraries/LibC/unistd.cpp
@@ -440,8 +440,8 @@ ssize_t readlink(const char* path, char* buffer, size_t size)
 
 off_t lseek(int fd, off_t offset, int whence)
 {
-    int rc = syscall(SC_lseek, fd, offset, whence);
-    __RETURN_WITH_ERRNO(rc, rc, -1);
+    int rc = syscall(SC_lseek, fd, &offset, whence);
+    __RETURN_WITH_ERRNO(rc, offset, -1);
 }
 
 int link(const char* old_path, const char* new_path)
@@ -633,7 +633,7 @@ char* getlogin()
 
 int ftruncate(int fd, off_t length)
 {
-    int rc = syscall(SC_ftruncate, fd, length);
+    int rc = syscall(SC_ftruncate, fd, &length);
     __RETURN_WITH_ERRNO(rc, rc, -1);
 }