diff --git a/parser.v b/parser.v
index a50fb29..7e94ee3 100644
--- a/parser.v
+++ b/parser.v
@@ -50,7 +50,7 @@ fn parse(text string, index int) string {
 				return text
 			}
 		}
-		next_index := text.last_index(reset) or {
+		next_index := text.index_last(reset) or {
 			return parse(text.replace(text[start_index..end_index + 1], c.str()), -1)
 		}
 		return parse(text.replace(text[start_index..end_index + 1], c.str()), next_index)
@@ -58,7 +58,7 @@ fn parse(text string, index int) string {
 	return text
 }
 
-fn num_of_chars(text string, c byte) int {
+fn num_of_chars(text string, c u8) int {
 	mut i := 0
 	for t in text {
 		if t == c {
diff --git a/utils.v b/utils.v
index b0e1728..ba47333 100644
--- a/utils.v
+++ b/utils.v
@@ -15,10 +15,12 @@ fn (c Crayon) bg_colorize(color string) Crayon {
 }
 
 fn (c Crayon) stylize(s string) Crayon {
-	mut stl := c.style
-	stl << style[s].str()
-	return Crayon{
-		...c
-		style: stl
+	unsafe{
+		mut stl := c.style
+		stl << style[s].str()
+		return Crayon{
+			...c
+			style: stl
+		}
 	}
 }