diff --git a/code/nel/include/nel/gui/css_style.h b/code/nel/include/nel/gui/css_style.h
index 77dc2091a..0937ebe0b 100644
--- a/code/nel/include/nel/gui/css_style.h
+++ b/code/nel/include/nel/gui/css_style.h
@@ -167,11 +167,11 @@ namespace NLGUI
 			return Current.FontSize-2;
 		}
 
-		static sint styleStackIndex;
+		sint styleStackIndex = 0;
 
 		inline void pushStyle()
 		{
-			CCssStyle::styleStackIndex++;
+			styleStackIndex++;
 			_StyleStack.push_back(Current);
 
 			Current.DisplayBlock = false;
@@ -186,7 +186,7 @@ namespace NLGUI
 
 		inline void popStyle()
 		{
-			CCssStyle::styleStackIndex--;
+			styleStackIndex--;
 			if (_StyleStack.empty())
 			{
 				Current = Root;
diff --git a/code/nel/src/gui/css_style.cpp b/code/nel/src/gui/css_style.cpp
index a8e60b011..b0b536d0d 100644
--- a/code/nel/src/gui/css_style.cpp
+++ b/code/nel/src/gui/css_style.cpp
@@ -31,8 +31,6 @@ using namespace NLMISC;
 
 namespace NLGUI
 {
-	sint CCssStyle::styleStackIndex = 0;
-
 	uint CCssStyle::SStyleRule::specificity() const
 	{
 		uint count = 0;