diff --git a/src/Nazara/Utility/Win32/InputImpl.cpp b/src/Nazara/Utility/Win32/InputImpl.cpp
index bafaf0f24..62337423d 100644
--- a/src/Nazara/Utility/Win32/InputImpl.cpp
+++ b/src/Nazara/Utility/Win32/InputImpl.cpp
@@ -222,7 +222,7 @@ NzVector2i NzEventImpl::GetMousePosition(const NzWindow& relativeTo)
 	}
 	else
 	{
-		NazaraError("Window's handle is invalid");
+		NazaraError("Invalid window handle");
 
 		// Attention que (-1, -1) est une position tout à fait valide et ne doit pas servir de test
 		return NzVector2i(-1, -1);
@@ -289,5 +289,5 @@ void NzEventImpl::SetMousePosition(int x, int y, const NzWindow& relativeTo)
 		SetCursorPos(pos.x, pos.y);
 	}
 	else
-		NazaraError("Window's handle is invalid");
+		NazaraError("Invalid window handle");
 }
diff --git a/src/Nazara/Utility/Win32/WindowImpl.cpp b/src/Nazara/Utility/Win32/WindowImpl.cpp
index 64a1fae74..1da1b9251 100644
--- a/src/Nazara/Utility/Win32/WindowImpl.cpp
+++ b/src/Nazara/Utility/Win32/WindowImpl.cpp
@@ -79,7 +79,7 @@ m_scrolling(0)
 {
 }
 
-bool NzWindowImpl::Create(NzVideoMode mode, const NzString& title, nzUInt32 style)
+bool NzWindowImpl::Create(const NzVideoMode& mode, const NzString& title, nzUInt32 style)
 {
 	bool fullscreen = (style & nzWindowStyle_Fullscreen) != 0;
 	DWORD win32Style, win32StyleEx;
@@ -183,7 +183,7 @@ bool NzWindowImpl::Create(NzVideoMode mode, const NzString& title, nzUInt32 styl
 	GetWindowRect(m_handle, &windowRect);
 
 	m_position.Set(windowRect.left, windowRect.top);
-	m_size.Set(clientRect.right-clientRect.left, clientRect.bottom-clientRect.top);
+	m_size.Set(clientRect.right - clientRect.left, clientRect.bottom - clientRect.top);
 
 	return true;
 }
diff --git a/src/Nazara/Utility/Win32/WindowImpl.hpp b/src/Nazara/Utility/Win32/WindowImpl.hpp
index ebd91f9ee..1a726391d 100644
--- a/src/Nazara/Utility/Win32/WindowImpl.hpp
+++ b/src/Nazara/Utility/Win32/WindowImpl.hpp
@@ -34,7 +34,7 @@ class NzWindowImpl : NzNonCopyable
 		NzWindowImpl(NzWindow* parent);
 		~NzWindowImpl() = default;
 
-		bool Create(NzVideoMode mode, const NzString& title, nzUInt32 style);
+		bool Create(const NzVideoMode& mode, const NzString& title, nzUInt32 style);
 		bool Create(NzWindowHandle handle);
 
 		void Destroy();