diff --git a/.gitignore b/.gitignore
index 4480c8102..a53ce7fd0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -97,6 +97,7 @@ metastore_db
 
 # files from R-package source install
 **/config.status
+R-package/config.h
 R-package/src/Makevars
 *.lib
 
diff --git a/R-package/tests/testthat/test_helpers.R b/R-package/tests/testthat/test_helpers.R
index c619bc50b..16831cf38 100644
--- a/R-package/tests/testthat/test_helpers.R
+++ b/R-package/tests/testthat/test_helpers.R
@@ -36,6 +36,10 @@ if (isTRUE(VCD_AVAILABLE)) {
                          base_score = 0.5)
 
     feature.names <- colnames(sparse_matrix)
+
+    # without feature names
+    bst.Tree.unnamed <- xgb.copy.Booster(bst.Tree)
+    setinfo(bst.Tree.unnamed, "feature_name", NULL)
 }
 
 # multiclass
@@ -49,10 +53,6 @@ mbst.GLM <- xgb.train(data = xgb.DMatrix(as.matrix(iris[, -5]), label = mlabel),
                       booster = "gblinear", eta = 0.1, nthread = 1, nrounds = nrounds,
                       objective = "multi:softprob", num_class = nclass, base_score = 0)
 
-# without feature names
-bst.Tree.unnamed <- xgb.copy.Booster(bst.Tree)
-setinfo(bst.Tree.unnamed, "feature_name", NULL)
-
 test_that("xgb.dump works", {
   .skip_if_vcd_not_available()
   if (!flag_32bit)