diff --git a/Libraries/LibDebug/DebugSession.cpp b/Libraries/LibDebug/DebugSession.cpp
index 194ea09a9c..42f1ced66e 100644
--- a/Libraries/LibDebug/DebugSession.cpp
+++ b/Libraries/LibDebug/DebugSession.cpp
@@ -30,18 +30,18 @@
 
 namespace Debug {
 
-DebugSession::DebugSession(int pid)
+DebugSession::DebugSession(pid_t pid)
     : m_debuggee_pid(pid)
-    , m_executable(initialize_executable_mapped_file(pid))
-    , m_elf(ELF::Loader::create(reinterpret_cast<const u8*>(m_executable->data()), m_executable->size()))
+    , m_executable(map_executable_for_process(pid))
+    , m_elf(ELF::Loader::create(reinterpret_cast<const u8*>(m_executable.data()), m_executable.size()))
     , m_debug_info(m_elf)
 {
 }
 
-NonnullOwnPtr<const MappedFile> DebugSession::initialize_executable_mapped_file(int pid)
+MappedFile DebugSession::map_executable_for_process(pid_t pid)
 {
-    auto executable = adopt_own(*new MappedFile(String::format("/proc/%d/exe", pid)));
-    ASSERT(executable->is_valid());
+    MappedFile executable(String::formatted("/proc/{}/exe", pid));
+    ASSERT(executable.is_valid());
     return executable;
 }
 
@@ -62,7 +62,7 @@ DebugSession::~DebugSession()
 
 OwnPtr<DebugSession> DebugSession::exec_and_attach(const String& command)
 {
-    int pid = fork();
+    auto pid = fork();
 
     if (pid < 0) {
         perror("fork");
@@ -108,7 +108,7 @@ OwnPtr<DebugSession> DebugSession::exec_and_attach(const String& command)
         return nullptr;
     }
 
-    return make<DebugSession>(pid);
+    return adopt_own(*new DebugSession(pid));
 }
 
 bool DebugSession::poke(u32* address, u32 data)
diff --git a/Libraries/LibDebug/DebugSession.h b/Libraries/LibDebug/DebugSession.h
index fc79c9b329..6912eb59dc 100644
--- a/Libraries/LibDebug/DebugSession.h
+++ b/Libraries/LibDebug/DebugSession.h
@@ -48,8 +48,6 @@ class DebugSession {
 public:
     static OwnPtr<DebugSession> exec_and_attach(const String& command);
 
-    // Has to be public for OwnPtr::make
-    DebugSession(int pid);
     ~DebugSession();
 
     int pid() const { return m_debuggee_pid; }
@@ -103,7 +101,7 @@ public:
 
     const ELF::Loader& elf() const { return *m_elf; }
     NonnullRefPtr<const ELF::Loader> elf_ref() const { return m_elf; }
-    const MappedFile& executable() const { return *m_executable; }
+    const MappedFile& executable() const { return m_executable; }
     const DebugInfo& debug_info() const { return m_debug_info; }
 
     enum DebugDecision {
@@ -121,15 +119,17 @@ public:
     };
 
 private:
+    explicit DebugSession(pid_t);
+
     // x86 breakpoint instruction "int3"
     static constexpr u8 BREAKPOINT_INSTRUCTION = 0xcc;
 
-    static NonnullOwnPtr<const MappedFile> initialize_executable_mapped_file(int pid);
+    static MappedFile map_executable_for_process(pid_t);
 
     int m_debuggee_pid { -1 };
     bool m_is_debuggee_dead { false };
 
-    NonnullOwnPtr<const MappedFile> m_executable;
+    MappedFile m_executable;
     NonnullRefPtr<const ELF::Loader> m_elf;
     DebugInfo m_debug_info;