diff --git a/upload/source/function/function_forum.php b/upload/source/function/function_forum.php
index e104562928a517cbe421ae6b1944dbdaf1e8f1cf..363a43fde7dd0898076a267fb04f2eb4596b0fb3 100644
--- a/upload/source/function/function_forum.php
+++ b/upload/source/function/function_forum.php
@@ -128,7 +128,7 @@ function formulaperm($formula) {
 			}
 		}
 	}
-	$formulaperm = @eval($formula) ? true : false;
+	@eval("\$formulaperm = ($formula) ? TRUE : FALSE;");
 	if(!$formulaperm) {
 		if(!$permmessage) {
 			$language = lang('forum/misc');
@@ -235,7 +235,7 @@ function medalformulaperm($formula, $type) {
 			}
 		}
 	}
-	$formulaperm = @eval($formula) ? true : false;
+	@eval("\$formulaperm = ($formula) ? TRUE : FALSE;");
 	if(!$formulaperm || $type == 2) {
 		if(!$permmessage) {
 			$language = lang('forum/misc');