diff --git a/dlls/winex11.drv/opengl.c b/dlls/winex11.drv/opengl.c
index 0f937cba5fd..9d588619ae1 100644
--- a/dlls/winex11.drv/opengl.c
+++ b/dlls/winex11.drv/opengl.c
@@ -922,6 +922,7 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, struct wgl_
       break ;
     default:
       FIXME("unsupported %x WGL Attribute\n", iWGLAttr[cur]);
+      cur++;
       break;
     }
     ++cur;