1 files changed, 2 insertions, 2 deletions
diff --git a/misc/ngram.sh b/misc/ngram.sh
index ce25a49..30c1671 100755
--- a/misc/ngram.sh
+++ b/misc/ngram.sh
@@ -14,7 +14,7 @@ download_ngram() {
   local directory=$3
 
   echo "Downloading: ${lang} - ${version}"
-  rm -rf "${directory}/${lang}"
+  rm -rf "${directory:?}/${lang}"
   curl --progress-bar "${NGRAM_DATA_URL}ngrams-${lang}-${version}.zip" |\
     bsdtar -x -f - -C "${directory}"
 }
@@ -54,6 +54,6 @@ for i in $(ls -d "${TARGET_DIR}"/*/); do
     fi
   done
   if [ "${delete}" == "yes" ]; then
-    rm -rf "${TARGET_DIR}/${realdir}"
+    rm -rf "${TARGET_DIR:?}/${realdir}"
   fi
 done