diff --git a/scripts/dist/install-go.sh b/scripts/dist/install-go.sh
index 89c6ead7e..ed2497ce4 100755
--- a/scripts/dist/install-go.sh
+++ b/scripts/dist/install-go.sh
@@ -57,7 +57,7 @@ esac
 # Replace current installation in "/usr/local/go".
 echo "Installing Go for ${DESTARCH^^} from \"$URL\". Please wait."
 rm -rf /usr/local/go
-wget -c "$URL" -O - | tar -xz -C /usr/local
+wget --inet4-only -c "$URL" -O - | tar -xz -C /usr/local
 
 # Add symlink to go binary.
 echo "Adding symbolic links for go and gofmt."
diff --git a/scripts/download-facenet.sh b/scripts/download-facenet.sh
index 71fcff424..cde93b402 100755
--- a/scripts/download-facenet.sh
+++ b/scripts/download-facenet.sh
@@ -25,7 +25,7 @@ if [[ -f ${MODEL_ZIP} ]] && [[ $(sha1sum ${MODEL_ZIP}) == ${MODEL_HASH} ]]; then
 else
   # Download model
   echo "Downloading latest model from $MODEL_URL..."
-  wget ${MODEL_URL} -O ${MODEL_ZIP}
+  wget --inet4-only -c "${MODEL_URL}" -O ${MODEL_ZIP}
 
   TMP_HASH=$(sha1sum ${MODEL_ZIP})
 
diff --git a/scripts/download-nasnet.sh b/scripts/download-nasnet.sh
index b8802311e..d5bc08e10 100755
--- a/scripts/download-nasnet.sh
+++ b/scripts/download-nasnet.sh
@@ -25,7 +25,7 @@ if [[ -f ${MODEL_ZIP} ]] && [[ $(sha1sum ${MODEL_ZIP}) == "${MODEL_HASH}" ]]; th
 else
   # Download model
   echo "Downloading latest model from $MODEL_URL..."
-  wget "${MODEL_URL}" -O ${MODEL_ZIP}
+  wget --inet4-only -c "${MODEL_URL}" -O ${MODEL_ZIP}
 
   TMP_HASH=$(sha1sum ${MODEL_ZIP})
 
diff --git a/scripts/download-nsfw.sh b/scripts/download-nsfw.sh
index f1f5bdbd0..9875b4b02 100755
--- a/scripts/download-nsfw.sh
+++ b/scripts/download-nsfw.sh
@@ -25,11 +25,11 @@ if [[ -f ${MODEL_ZIP} ]] && [[ $(sha1sum ${MODEL_ZIP}) == "${MODEL_HASH}" ]]; th
 else
   # Download model
   echo "Downloading latest model from $MODEL_URL..."
-  wget "${MODEL_URL}" -O ${MODEL_ZIP}
+  wget --inet4-only -c "${MODEL_URL}" -O ${MODEL_ZIP}
 
   TMP_HASH=$(sha1sum ${MODEL_ZIP})
 
-  echo ${TMP_HASH}
+  echo "${TMP_HASH}"
 fi
 
 # Create backup