diff --git a/util/Canvas.js b/util/Canvas.js
index 397a09e5..4c6da78e 100644
--- a/util/Canvas.js
+++ b/util/Canvas.js
@@ -213,7 +213,7 @@ module.exports = class CanvasUtil {
 		return ctx;
 	}
 
-	measureTextHeightWithBreaks(ctx, text) {
+	static measureTextHeightWithBreaks(ctx, text) {
 		const lines = text.split('\n');
 		let result = 0;
 		for (const line of lines) {