diff --git a/Source/Core/Core/Debugger/Debugger_SymbolMap.cpp b/Source/Core/Core/Debugger/Debugger_SymbolMap.cpp
index 50ca9dbf85..2e741754cc 100644
--- a/Source/Core/Core/Debugger/Debugger_SymbolMap.cpp
+++ b/Source/Core/Core/Debugger/Debugger_SymbolMap.cpp
@@ -26,10 +26,10 @@ static bool IsStackBottom(const Core::CPUThreadGuard& guard, u32 addr)
   return !addr || !PowerPC::MMU::HostIsRAMAddress(guard, addr);
 }
 
-static void WalkTheStack(Core::System& system, const Core::CPUThreadGuard& guard,
+static void WalkTheStack(const Core::CPUThreadGuard& guard,
                          const std::function<void(u32)>& stack_step)
 {
-  auto& ppc_state = system.GetPPCState();
+  const auto& ppc_state = guard.GetSystem().GetPPCState();
 
   if (!IsStackBottom(guard, ppc_state.gpr[1]))
   {
@@ -52,10 +52,9 @@ static void WalkTheStack(Core::System& system, const Core::CPUThreadGuard& guard
 // Returns callstack "formatted for debugging" - meaning that it
 // includes LR as the last item, and all items are the last step,
 // instead of "pointing ahead"
-bool GetCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
-                  std::vector<CallstackEntry>& output)
+bool GetCallstack(const Core::CPUThreadGuard& guard, std::vector<CallstackEntry>& output)
 {
-  auto& ppc_state = system.GetPPCState();
+  const auto& ppc_state = guard.GetSystem().GetPPCState();
 
   if (!Core::IsRunning() || !PowerPC::MMU::HostIsRAMAddress(guard, ppc_state.gpr[1]))
     return false;
@@ -75,7 +74,7 @@ bool GetCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
   entry.vAddress = LR(ppc_state) - 4;
   output.push_back(entry);
 
-  WalkTheStack(system, guard, [&entry, &output](u32 func_addr) {
+  WalkTheStack(guard, [&entry, &output](u32 func_addr) {
     std::string func_desc = g_symbolDB.GetDescription(func_addr);
     if (func_desc.empty() || func_desc == "Invalid")
       func_desc = "(unknown)";
@@ -87,10 +86,10 @@ bool GetCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
   return true;
 }
 
-void PrintCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
-                    Common::Log::LogType type, Common::Log::LogLevel level)
+void PrintCallstack(const Core::CPUThreadGuard& guard, Common::Log::LogType type,
+                    Common::Log::LogLevel level)
 {
-  auto& ppc_state = system.GetPPCState();
+  const auto& ppc_state = guard.GetSystem().GetPPCState();
 
   GENERIC_LOG_FMT(type, level, "== STACK TRACE - SP = {:08x} ==", ppc_state.gpr[1]);
 
@@ -105,7 +104,7 @@ void PrintCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
                     LR(ppc_state));
   }
 
-  WalkTheStack(system, guard, [type, level](u32 func_addr) {
+  WalkTheStack(guard, [type, level](u32 func_addr) {
     std::string func_desc = g_symbolDB.GetDescription(func_addr);
     if (func_desc.empty() || func_desc == "Invalid")
       func_desc = "(unknown)";
diff --git a/Source/Core/Core/Debugger/Debugger_SymbolMap.h b/Source/Core/Core/Debugger/Debugger_SymbolMap.h
index 83dcfaa551..6e79e5f91a 100644
--- a/Source/Core/Core/Debugger/Debugger_SymbolMap.h
+++ b/Source/Core/Core/Debugger/Debugger_SymbolMap.h
@@ -13,8 +13,7 @@
 namespace Core
 {
 class CPUThreadGuard;
-class System;
-}  // namespace Core
+}
 
 namespace Dolphin_Debugger
 {
@@ -24,10 +23,9 @@ struct CallstackEntry
   u32 vAddress = 0;
 };
 
-bool GetCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
-                  std::vector<CallstackEntry>& output);
-void PrintCallstack(Core::System& system, const Core::CPUThreadGuard& guard,
-                    Common::Log::LogType type, Common::Log::LogLevel level);
+bool GetCallstack(const Core::CPUThreadGuard& guard, std::vector<CallstackEntry>& output);
+void PrintCallstack(const Core::CPUThreadGuard& guard, Common::Log::LogType type,
+                    Common::Log::LogLevel level);
 void PrintDataBuffer(Common::Log::LogType type, const u8* data, size_t size,
                      std::string_view title);
 }  // namespace Dolphin_Debugger
diff --git a/Source/Core/Core/PowerPC/Expression.cpp b/Source/Core/Core/PowerPC/Expression.cpp
index 2fe2d8c036..79307f4460 100644
--- a/Source/Core/Core/PowerPC/Expression.cpp
+++ b/Source/Core/Core/PowerPC/Expression.cpp
@@ -115,9 +115,8 @@ static double CallstackFunc(expr_func* f, vec_expr_t* args, void* c)
 
   std::vector<Dolphin_Debugger::CallstackEntry> stack;
   {
-    auto& system = Core::System::GetInstance();
-    Core::CPUThreadGuard guard(system);
-    bool success = Dolphin_Debugger::GetCallstack(system, guard, stack);
+    Core::CPUThreadGuard guard(Core::System::GetInstance());
+    const bool success = Dolphin_Debugger::GetCallstack(guard, stack);
     if (!success)
       return 0;
   }
diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp b/Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp
index 6b475e1204..929ec185c4 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter.cpp
@@ -323,7 +323,7 @@ void Interpreter::unknown_instruction(Interpreter& interpreter, UGeckoInstructio
   const u32 opcode = PowerPC::MMU::HostRead_U32(guard, last_pc);
   const std::string disasm = Common::GekkoDisassembler::Disassemble(opcode, last_pc);
   NOTICE_LOG_FMT(POWERPC, "Last PC = {:08x} : {}", last_pc, disasm);
-  Dolphin_Debugger::PrintCallstack(system, guard, Common::Log::LogType::POWERPC,
+  Dolphin_Debugger::PrintCallstack(guard, Common::Log::LogType::POWERPC,
                                    Common::Log::LogLevel::LNOTICE);
 
   const auto& ppc_state = interpreter.m_ppc_state;
diff --git a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
index 650e17e905..0bf2937dbf 100644
--- a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
+++ b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
@@ -344,7 +344,7 @@ void CodeWidget::UpdateCallstack()
 
   const bool success = [this, &stack] {
     Core::CPUThreadGuard guard(m_system);
-    return Dolphin_Debugger::GetCallstack(m_system, guard, stack);
+    return Dolphin_Debugger::GetCallstack(guard, stack);
   }();
 
   if (!success)