diff --git a/src/V3d/V3d_View.cxx b/src/V3d/V3d_View.cxx
index 9893f73e0b..bedc6b38d5 100644
--- a/src/V3d/V3d_View.cxx
+++ b/src/V3d/V3d_View.cxx
@@ -968,7 +968,7 @@ void V3d_View::SetTwist(const Standard_Real angle)
   const gp_Dir aReferencePlane (aCamera->Direction().Reversed());
   if (!screenAxis (aReferencePlane, gp::DZ(), myXscreenAxis, myYscreenAxis, myZscreenAxis)
    && !screenAxis (aReferencePlane, gp::DY(), myXscreenAxis, myYscreenAxis, myZscreenAxis)
-   && !screenAxis (aReferencePlane, gp::DZ(), myXscreenAxis, myYscreenAxis, myZscreenAxis))
+   && !screenAxis (aReferencePlane, gp::DX(), myXscreenAxis, myYscreenAxis, myZscreenAxis))
   {
     throw V3d_BadValue ("V3d_ViewSetTwist, alignment of Eye,At,Up,");
   }