diff --git a/lam/lib/account.inc b/lam/lib/account.inc
index 9e6109c3..392f2a54 100644
--- a/lam/lib/account.inc
+++ b/lam/lib/account.inc
@@ -1111,9 +1111,9 @@ class moduleCache {
  */
 function getRandomNumber() {
 	if (function_exists('openssl_random_pseudo_bytes')) {
-		return hexdec(bin2hex(openssl_random_pseudo_bytes(5)));
+		return abs(hexdec(bin2hex(openssl_random_pseudo_bytes(5))));
 	}
-	return mt_rand();
+	return abs(mt_rand());
 }
 
 /**