diff --git a/typescript-javascript/qrcodegen.ts b/typescript-javascript/qrcodegen.ts
index 809622b..dece093 100644
--- a/typescript-javascript/qrcodegen.ts
+++ b/typescript-javascript/qrcodegen.ts
@@ -545,7 +545,7 @@ namespace qrcodegen {
 			else {
 				const numAlign: int = Math.floor(this.version / 7) + 2;
 				const step: int = (this.version == 32) ? 26 :
-					Math.ceil((this.size - 13) / (numAlign * 2 - 2)) * 2;
+					Math.ceil((this.version * 4 + 4) / (numAlign * 2 - 2)) * 2;
 				let result: Array<int> = [6];
 				for (let pos = this.size - 7; result.length < numAlign; pos -= step)
 					result.splice(1, 0, pos);