diff --git a/src/QROptionsTrait.php b/src/QROptionsTrait.php
index 6b7c2a73f..cf29cc539 100644
--- a/src/QROptionsTrait.php
+++ b/src/QROptionsTrait.php
@@ -547,6 +547,13 @@ trait QROptionsTrait{
 		$this->eccLevel = $eccLevel;
 	}
 
+	/**
+	 * clamps the module scale at a minimum of 1 and a maximum of 50
+	 */
+	protected function set_scale(int $scale):void{
+		$this->scale = max(1, min($scale, 50));
+	}
+
 	/**
 	 * sets/clamps the quiet zone size
 	 */