diff --git a/Kernel/Thread.cpp b/Kernel/Thread.cpp
index 467c4903ca..ca6a3271ae 100644
--- a/Kernel/Thread.cpp
+++ b/Kernel/Thread.cpp
@@ -502,7 +502,7 @@ void Thread::push_value_on_stack(u32 value)
 
 void Thread::make_userspace_stack_for_main_thread(Vector<String> arguments, Vector<String> environment)
 {
-    auto* region = m_process.allocate_region(VirtualAddress(), default_userspace_stack_size, "Stack (Main thread)");
+    auto* region = m_process.allocate_region(VirtualAddress(), default_userspace_stack_size, "Stack (Main thread)", PROT_READ | PROT_WRITE, false);
     ASSERT(region);
     m_tss.esp = region->vaddr().offset(default_userspace_stack_size).get();
 
@@ -537,7 +537,7 @@ void Thread::make_userspace_stack_for_main_thread(Vector<String> arguments, Vect
 
 void Thread::make_userspace_stack_for_secondary_thread(void* argument)
 {
-    m_userspace_stack_region = m_process.allocate_region(VirtualAddress(), default_userspace_stack_size, String::format("Stack (Thread %d)", tid()));
+    m_userspace_stack_region = m_process.allocate_region(VirtualAddress(), default_userspace_stack_size, String::format("Stack (Thread %d)", tid()), PROT_READ | PROT_WRITE, false);
     ASSERT(m_userspace_stack_region);
     m_tss.esp = m_userspace_stack_region->vaddr().offset(default_userspace_stack_size).get();
 
diff --git a/Kernel/Thread.h b/Kernel/Thread.h
index baeb85146d..e0e34ad853 100644
--- a/Kernel/Thread.h
+++ b/Kernel/Thread.h
@@ -313,7 +313,7 @@ public:
     }
 
     static constexpr u32 default_kernel_stack_size = 65536;
-    static constexpr u32 default_userspace_stack_size = 65536;
+    static constexpr u32 default_userspace_stack_size = 4 * MB;
 
 private:
     IntrusiveListNode m_runnable_list_node;