diff --git a/code/nel/include/nel/misc/bitmap.h b/code/nel/include/nel/misc/bitmap.h
index 8d2bf156f..0466cd673 100644
--- a/code/nel/include/nel/misc/bitmap.h
+++ b/code/nel/include/nel/misc/bitmap.h
@@ -320,16 +320,8 @@ public:
 
 	// don't forget to update operator=() and swap() if adding a data member
 
-	CBitmap()
-	{
-		_MipMapCount = 1;
-		_Width = 0;
-		_Height = 0;
-		PixelFormat = RGBA;
-		_LoadGrayscaleAsAlpha = true;
-	}
-
-	virtual ~CBitmap() { }
+	CBitmap();
+	virtual ~CBitmap();
 
 	// swap 2 bitmaps contents
 	void	swap(CBitmap &other);
diff --git a/code/nel/src/misc/bitmap.cpp b/code/nel/src/misc/bitmap.cpp
index c1249319e..798a52019 100644
--- a/code/nel/src/misc/bitmap.cpp
+++ b/code/nel/src/misc/bitmap.cpp
@@ -84,6 +84,20 @@ void MakeWhite(CBitmap &bitmaps)
 }
 #endif // NEL_ALL_BITMAP_WHITE
 
+CBitmap::CBitmap()
+{
+	_MipMapCount = 1;
+	_Width = 0;
+	_Height = 0;
+	PixelFormat = RGBA;
+	_LoadGrayscaleAsAlpha = true;
+}
+
+CBitmap::~CBitmap()
+{
+
+}
+
 /*-------------------------------------------------------------------*\
 								load
 \*-------------------------------------------------------------------*/