diff --git a/Kernel/FileSystem/ProcFS.cpp b/Kernel/FileSystem/ProcFS.cpp
index ec07b6a4fa..e98154094b 100644
--- a/Kernel/FileSystem/ProcFS.cpp
+++ b/Kernel/FileSystem/ProcFS.cpp
@@ -1260,9 +1260,7 @@ KResult ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntr
                 callback({ { entry.name, strlen(entry.name) }, to_identifier(fsid(), PDI_Root, 0, (ProcFileType)entry.proc_file_type), 0 });
         }
         for (auto pid_child : Process::all_pids()) {
-            char name[16];
-            size_t name_length = (size_t)snprintf(name, sizeof(name), "%d", pid_child.value());
-            callback({ { name, name_length }, to_identifier(fsid(), PDI_Root, pid_child, FI_PID), 0 });
+            callback({ String::number(pid_child.value()), to_identifier(fsid(), PDI_Root, pid_child, FI_PID), 0 });
         }
         break;
 
@@ -1305,9 +1303,7 @@ KResult ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntr
             auto description = process->file_description(i);
             if (!description)
                 continue;
-            char name[16];
-            size_t name_length = (size_t)snprintf(name, sizeof(name), "%d", i);
-            callback({ { name, name_length }, to_identifier_with_fd(fsid(), pid, i), 0 });
+            callback({ String::number(i), to_identifier_with_fd(fsid(), pid, i), 0 });
         }
     } break;
 
@@ -1318,9 +1314,7 @@ KResult ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntr
             return ENOENT;
         process->for_each_thread([&](Thread& thread) -> IterationDecision {
             int tid = thread.tid().value();
-            char name[16];
-            size_t name_length = (size_t)snprintf(name, sizeof(name), "%d", tid);
-            callback({ { name, name_length }, to_identifier_with_stack(fsid(), tid), 0 });
+            callback({ String::number(tid), to_identifier_with_stack(fsid(), tid), 0 });
             return IterationDecision::Continue;
         });
     } break;
diff --git a/Kernel/TTY/SlavePTY.cpp b/Kernel/TTY/SlavePTY.cpp
index 5cc09eaa9a..cb5c707d31 100644
--- a/Kernel/TTY/SlavePTY.cpp
+++ b/Kernel/TTY/SlavePTY.cpp
@@ -37,7 +37,7 @@ SlavePTY::SlavePTY(MasterPTY& master, unsigned index)
     , m_master(master)
     , m_index(index)
 {
-    snprintf(m_tty_name, sizeof(m_tty_name), "/dev/pts/%u", m_index);
+    m_tty_name = String::formatted("/dev/pts/{}", m_index);
     auto process = Process::current();
     set_uid(process->uid());
     set_gid(process->gid());
diff --git a/Kernel/TTY/SlavePTY.h b/Kernel/TTY/SlavePTY.h
index fc9c46311f..4fd889ed9b 100644
--- a/Kernel/TTY/SlavePTY.h
+++ b/Kernel/TTY/SlavePTY.h
@@ -66,7 +66,7 @@ private:
     RefPtr<MasterPTY> m_master;
     time_t m_time_of_last_write { 0 };
     unsigned m_index { 0 };
-    char m_tty_name[32];
+    String m_tty_name;
 };
 
 }