diff --git a/Kernel/API/POSIX/sys/types.h b/Kernel/API/POSIX/sys/types.h
index e30be11b67..1d2a43b0f6 100644
--- a/Kernel/API/POSIX/sys/types.h
+++ b/Kernel/API/POSIX/sys/types.h
@@ -38,16 +38,16 @@ typedef int id_t;
 typedef uint64_t ino_t;
 typedef int64_t off_t;
 
-typedef uint32_t blkcnt_t;
-typedef uint32_t blksize_t;
-typedef uint32_t dev_t;
+typedef uint64_t blkcnt_t;
+typedef uint64_t blksize_t;
+typedef uint64_t dev_t;
 typedef uint16_t mode_t;
-typedef uint32_t nlink_t;
+typedef uint64_t nlink_t;
 
 typedef int64_t time_t;
 typedef uint32_t useconds_t;
-typedef int32_t suseconds_t;
-typedef uint32_t clock_t;
+typedef int64_t suseconds_t;
+typedef uint64_t clock_t;
 
 typedef uint64_t fsblkcnt_t;
 typedef uint64_t fsfilcnt_t;
diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h
index 307915b575..f86cf7788c 100644
--- a/Kernel/API/Syscall.h
+++ b/Kernel/API/Syscall.h
@@ -416,7 +416,7 @@ struct SC_chown_params {
 struct SC_mknod_params {
     StringArgument path;
     u16 mode;
-    u32 dev;
+    dev_t dev;
 };
 
 struct SC_symlink_params {
diff --git a/Userland/Utilities/ls.cpp b/Userland/Utilities/ls.cpp
index cc656e8447..2dc62560a5 100644
--- a/Userland/Utilities/ls.cpp
+++ b/Userland/Utilities/ls.cpp
@@ -337,7 +337,7 @@ static bool print_filesystem_object(DeprecatedString const& path, DeprecatedStri
     else
         printf("%c", st.st_mode & S_IXOTH ? 'x' : '-');
 
-    printf(" %3u", st.st_nlink);
+    printf(" %3lu", st.st_nlink);
 
     auto username = users.get(st.st_uid);
     if (!flag_print_numeric && username.has_value()) {