diff --git a/.circleci/build_docs/commit_docs.sh b/.circleci/build_docs/commit_docs.sh
index 42fb43bec9..7d18214eef 100755
--- a/.circleci/build_docs/commit_docs.sh
+++ b/.circleci/build_docs/commit_docs.sh
@@ -15,7 +15,7 @@ target=$2
 
 echo "committing docs from ${src} to ${target}"
 
-pushd $src
+pushd "${src}"
 git checkout gh-pages
 mkdir -p ./"${target}"
 rm -rf ./"${target}"/*
diff --git a/test/torchaudio_unittest/README.md b/test/torchaudio_unittest/README.md
index fbce3d1a52..119c644687 100644
--- a/test/torchaudio_unittest/README.md
+++ b/test/torchaudio_unittest/README.md
@@ -82,12 +82,12 @@ Code:
 
 ```python
 waveform = common_utils.get_sinusoid(
-	frequency=300,
-	sample_rate=16000,
-	duration=1,  # seconds
-	n_channels=1,
-	dtype="float32",
-	device="cpu",
+    frequency=300,
+    sample_rate=16000,
+    duration=1,  # seconds
+    n_channels=1,
+    dtype="float32",
+    device="cpu",
 )
 ```