diff --git a/lib/libGLU/src/libnurbs/internals/varray.cc b/lib/libGLU/src/libnurbs/internals/varray.cc
index 1cb235443..41b3b1835 100644
--- a/lib/libGLU/src/libnurbs/internals/varray.cc
+++ b/lib/libGLU/src/libnurbs/internals/varray.cc
@@ -73,8 +73,8 @@ Varray::~Varray( void )
 inline void
 Varray::update( Arc_ptr arc, long dir[2], REAL val )
 {
-    register long ds = sgn(arc->tail()[0] - arc->prev->tail()[0]);
-    register long dt = sgn(arc->tail()[1] - arc->prev->tail()[1]);
+    long ds = sgn(arc->tail()[0] - arc->prev->tail()[0]);
+    long dt = sgn(arc->tail()[1] - arc->prev->tail()[1]);
 
     if( dir[0] != ds || dir[1] != dt ) {
 	dir[0] = ds;