diff --git a/Common/nvMatrix.h b/Common/nvMatrix.h
index 92879dcf..80037c4a 100644
--- a/Common/nvMatrix.h
+++ b/Common/nvMatrix.h
@@ -258,7 +258,7 @@ namespace nv
                 s[2] = &r3[0];
                 s[3] = &r4[0];
 
-                register int i,j,p,jj;
+                int i,j,p,jj;
 
                 for (i=0; i<4; i++)
                 {