diff --git a/rpcs3/Emu/CPU/CPUThread.cpp b/rpcs3/Emu/CPU/CPUThread.cpp
index 9b7268bef1..a318257e37 100644
--- a/rpcs3/Emu/CPU/CPUThread.cpp
+++ b/rpcs3/Emu/CPU/CPUThread.cpp
@@ -393,7 +393,7 @@ s64 CPUThread::ExecAsCallback(u64 pc, bool wait, u64 a1, u64 a2, u64 a3, u64 a4)
 	{
 		if (Emu.IsStopped())
 		{
-			ConLog.Warning("ExecAsCallback(wait=%s) aborted", std::string(wait ? "true" : "false").c_str());
+			ConLog.Warning("ExecAsCallback(wait=%s) aborted", wait ? "true" : "false");
 			return CELL_EABORT; // doesn't mean anything
 		}
 		Sleep(1);
diff --git a/rpcs3/Emu/SysCalls/Static.cpp b/rpcs3/Emu/SysCalls/Static.cpp
index ab50517345..3d79450cce 100644
--- a/rpcs3/Emu/SysCalls/Static.cpp
+++ b/rpcs3/Emu/SysCalls/Static.cpp
@@ -173,8 +173,8 @@ void StaticAnalyse(void* ptr, u32 size, u32 base)
 			else
 			{
 				ConLog.Error("Function group [%s] failed:%s%s", std::string(name, 9).c_str(),
-					std::string(res & GSR_MISSING ? " missing;" : "").c_str(),
-					std::string(res & GSR_EXCESS ? " excess;" : "").c_str());
+					(res & GSR_MISSING ? " missing;" : ""),
+					(res & GSR_EXCESS ? " excess;" : ""));
 			}
 		}
 	}
diff --git a/rpcs3/Emu/SysCalls/SysCalls.cpp b/rpcs3/Emu/SysCalls/SysCalls.cpp
index 836e54f333..595e1597b9 100644
--- a/rpcs3/Emu/SysCalls/SysCalls.cpp
+++ b/rpcs3/Emu/SysCalls/SysCalls.cpp
@@ -359,12 +359,12 @@ void default_syscall()
 		case 999:
 			dump_enable = !dump_enable;
 			Emu.Pause();
-			ConLog.Warning("Dump %s", std::string(dump_enable ? "enabled" : "disabled").c_str());
+			ConLog.Warning("Dump %s", (dump_enable ? "enabled" : "disabled"));
 		return;
 
 		case 1000:
 			Ini.HLELogging.SetValue(!Ini.HLELogging.GetValue());
-			ConLog.Warning("Log %s", std::string(Ini.HLELogging.GetValue() ? "enabled" : "disabled").c_str());
+			ConLog.Warning("Log %s", (Ini.HLELogging.GetValue() ? "enabled" : "disabled"));
 		return;
 	}
 
diff --git a/rpcs3/Emu/SysCalls/SysCalls.h b/rpcs3/Emu/SysCalls/SysCalls.h
index ffeb301025..e40cff1124 100644
--- a/rpcs3/Emu/SysCalls/SysCalls.h
+++ b/rpcs3/Emu/SysCalls/SysCalls.h
@@ -421,7 +421,7 @@ extern int sys_rsx_device_map(mem32_t a1, mem32_t a2, u32 a3);
 extern int sys_rsx_device_unmap();
 extern int sys_rsx_attribute();
 
-#define UNIMPLEMENTED_FUNC(module) module.Error("Unimplemented function: %s", std::string(__FUNCTION__).c_str())
+#define UNIMPLEMENTED_FUNC(module) module.Error("Unimplemented function: %s", __FUNCTION__)
 
 #define SC_ARG_0 CPU.GPR[3]
 #define SC_ARG_1 CPU.GPR[4]
diff --git a/rpcs3/Emu/SysCalls/lv2/SC_Mutex.cpp b/rpcs3/Emu/SysCalls/lv2/SC_Mutex.cpp
index 2d54cb1d14..59095350e8 100644
--- a/rpcs3/Emu/SysCalls/lv2/SC_Mutex.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/SC_Mutex.cpp
@@ -46,7 +46,7 @@ int sys_mutex_create(mem32_t mutex_id, mem_ptr_t<sys_mutex_attribute> attr)
 	mutex->m_mutex.unlock(tid);
 	sys_mtx.Warning("*** mutex created [%s] (protocol=0x%x, recursive=%s): id = %d",
 		std::string(attr->name, 8).c_str(), (u32) attr->protocol,
-		std::string(is_recursive ? "true" : "false").c_str(), mutex_id.GetValue());
+		(is_recursive ? "true" : "false"), mutex_id.GetValue());
 
 	// TODO: unlock mutex when owner thread does exit
 
diff --git a/rpcs3/Emu/SysCalls/lv2/SC_SPU_Thread.cpp b/rpcs3/Emu/SysCalls/lv2/SC_SPU_Thread.cpp
index 697455dbec..ba5c8023d8 100644
--- a/rpcs3/Emu/SysCalls/lv2/SC_SPU_Thread.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/SC_SPU_Thread.cpp
@@ -132,7 +132,7 @@ int sys_spu_thread_initialize(mem32_t thread, u32 group, u32 spu_num, mem_ptr_t<
 	(*(SPUThread*)&new_thread).group = group_info;
 
 	sc_spu.Warning("*** New SPU Thread [%s] (img_offset=0x%x, ls_offset=0x%x, ep=0x%x, a1=0x%llx, a2=0x%llx, a3=0x%llx, a4=0x%llx): id=%d",
-		std::string(attr->name_addr ? name : "").c_str(), (u32) img->segs_addr, ((SPUThread&) new_thread).dmac.ls_offset, spu_ep, a1, a2, a3, a4, thread.GetValue());
+		(attr->name_addr ? name.c_str() : ""), (u32) img->segs_addr, ((SPUThread&) new_thread).dmac.ls_offset, spu_ep, a1, a2, a3, a4, thread.GetValue());
 
 	return CELL_OK;
 }
diff --git a/rpcs3/Gui/MainFrame.cpp b/rpcs3/Gui/MainFrame.cpp
index f3b1ea73cb..691c8a825a 100644
--- a/rpcs3/Gui/MainFrame.cpp
+++ b/rpcs3/Gui/MainFrame.cpp
@@ -862,7 +862,7 @@ void MainFrame::UpdateUI(wxCommandEvent& event)
 	//send_exit.Enable(false);
 	bool enable_commands = !is_stopped && Emu.GetCallbackManager().m_exit_callback.m_callbacks.GetCount();
 
-	send_open_menu.SetItemLabel(wxString::Format("Send %s system menu cmd", std::string(m_sys_menu_opened ? "close" : "open").c_str()));
+	send_open_menu.SetItemLabel(wxString::Format("Send %s system menu cmd", (m_sys_menu_opened ? "close" : "open")));
 	send_open_menu.Enable(enable_commands);
 	send_exit.Enable(enable_commands);