diff --git a/code/nel/src/3d/driver/opengl/driver_opengl.h b/code/nel/src/3d/driver/opengl/driver_opengl.h
index 56ed5d14c..cbe651e0b 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl.h
+++ b/code/nel/src/3d/driver/opengl/driver_opengl.h
@@ -117,13 +117,13 @@ class   COcclusionQueryGL;
 
 bool GlWndProc(CDriverGL *driver, HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
 typedef HCURSOR nlCursor;
-#define EmptyCursor NULL
+#define EmptyCursor (nlCursor)NULL
 
 #elif defined (NL_OS_MAC)
 
 bool GlWndProc(CDriverGL *driver, const void* e);
 typedef void* nlCursor;
-#define EmptyCursor NULL
+#define EmptyCursor (nlCursor)NULL
 
 #elif defined (NL_OS_UNIX)
 
diff --git a/code/nel/src/3d/driver/opengl/driver_opengl_inputs.cpp b/code/nel/src/3d/driver/opengl/driver_opengl_inputs.cpp
index 260dcd5af..b957b372a 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl_inputs.cpp
+++ b/code/nel/src/3d/driver/opengl/driver_opengl_inputs.cpp
@@ -407,7 +407,7 @@ nlCursor CDriverGL::buildCursor(const CBitmap &src, NLMISC::CRGBA col, uint8 rot
 	}
 
 	// create a cursor from bitmap
-	nlCursor result = NULL;
+	nlCursor result = EmptyCursor;
 	convertBitmapToCursor(rotSrc, result, mouseW, mouseH, _ColorDepth == ColorDepth16 ? 16:32, col, hotSpotX, hotSpotY);
 	return result;
 }
diff --git a/code/nel/src/3d/driver/opengl/driver_opengl_material.cpp b/code/nel/src/3d/driver/opengl/driver_opengl_material.cpp
index 028dd1614..569aceb0c 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl_material.cpp
+++ b/code/nel/src/3d/driver/opengl/driver_opengl_material.cpp
@@ -251,8 +251,8 @@ bool CDriverGL::setupMaterial(CMaterial& mat)
 {
 	H_AUTO_OGL(CDriverGL_setupMaterial)
 	CShaderGL*	pShader;
-	GLenum		glenum;
-	uint32		touched=mat.getTouched();
+	GLenum		glenum = GL_ZERO;
+	uint32		touched = mat.getTouched();
 	uint		stage;
 
 	// profile.