diff --git a/testings/testing_treewalk.c b/testings/testing_treewalk.c
index 8c9220ba3d6c73981d7dd2f040a4f695550b3850..af457479ef8de2af2f9000c573d36fa559822dc2 100644
--- a/testings/testing_treewalk.c
+++ b/testings/testing_treewalk.c
@@ -31,7 +31,7 @@ main(int argc, char ** argv)
     matrix.p = 1;
     matrix.mt = 4;
     matrix.nt = 13;
-    libhqr_hqr_init( &qrtree, LIBHQR_QR, &matrix, 3 , 0, 2 , -1, 0, 0);
+    libhqr_hqr_init( &qrtree, LIBHQR_QR, &matrix, -1 , -1 , -1 , -1, 0, 0);
     minMN = libhqr_imin(matrix.mt, matrix.nt );
     rc = libhqr_tree_check( &matrix, &qrtree );
     printf("%d\n", rc);