diff --git a/ci/docker/runtime_functions.sh b/ci/docker/runtime_functions.sh
index 5a44cccc6aa0..a1607665f4bb 100755
--- a/ci/docker/runtime_functions.sh
+++ b/ci/docker/runtime_functions.sh
@@ -1107,7 +1107,7 @@ nightly_straight_dope_python3_multi_gpu_tests() {
 nightly_tutorial_test_ubuntu_python3_gpu() {
     set -ex
     cd /work/mxnet/docs
-    export BUILD_VER=tutorial 
+    export BUILD_VER=tutorial
     export MXNET_DOCS_BUILD_MXNET=0
     make html
     export MXNET_STORAGE_FALLBACK_LOG_VERBOSE=0
@@ -1137,7 +1137,7 @@ deploy_docs() {
     set -ex
     pushd .
 
-    make docs
+    make docs -W
 
     popd
 }
@@ -1193,5 +1193,3 @@ EOF
     declare -F | cut -d' ' -f3
     echo
 fi
-
-
diff --git a/docs/build_version_doc/build_all_version.sh b/docs/build_version_doc/build_all_version.sh
index 5fafe3b4b5fb..6b8c3cbd864e 100755
--- a/docs/build_version_doc/build_all_version.sh
+++ b/docs/build_version_doc/build_all_version.sh
@@ -43,7 +43,7 @@
 set -e
 set -x
 
-# Set OPT to any Sphinx build options, like -W for "warnings as errors"
+# Set OPTS to any Sphinx build options, like -W for "warnings as errors"
 OPTS=
 
 # $1 is the list of branches/tags to build