diff --git a/functions/build_lists.sh b/functions/build_lists.sh
index ce0c6aad3..9cd24e03a 100644
--- a/functions/build_lists.sh
+++ b/functions/build_lists.sh
@@ -7,7 +7,7 @@ readonly RAW_LIGHT='data/raw_light.txt'
 
 build() {
     # Set default comment character to '#'
-    comment=${comment:-'#'}
+    comment=${comment:-#}
 
     mkdir -p "lists/${directory}"
 
@@ -20,7 +20,7 @@ build() {
         fi
 
         source_file="${source_file:-$RAW}"
-        blocklist_path="lists/${directory}/${list_name:-'scams.txt'}"
+        blocklist_path="lists/${directory}/${list_name:-scams.txt}"
 
         # Append header onto blocklist
         cat << EOF > "$blocklist_path"
diff --git a/functions/update_readme.sh b/functions/update_readme.sh
index f463ea6cc..403d2768f 100644
--- a/functions/update_readme.sh
+++ b/functions/update_readme.sh
@@ -139,7 +139,7 @@ EOF
 # for each source.
 # $1: source to process (default is all sources)
 print_stats() {
-    [[ -z "$1" ]] && source='All sources' || source="$1"
+    source="${3:-All sources}"
     printf "%5s |%10s |%8s%% | %s\n" \
         "$(sum "$TODAY" "$1")" "$(sum "$YESTERDAY" "$1")" "$(count_excluded "$1" )" "$source"
 }