diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index cc29338325a..29b47a624b3 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -9362,7 +9362,7 @@ function dol_eval($s, $returnvalue = 0, $hideerrors = 1, $onlysimplestring = '1'
 	} catch (Error $e) {
 		$error = 'dol_eval try/catch error : ';
 		$error .= $e->getMessage();
-		dol_syslog($error);
+		dol_syslog($error, LOG_WARNING);
 	}
 }
 
diff --git a/test/phpunit/SecurityTest.php b/test/phpunit/SecurityTest.php
index d4d45837e74..d6fad65c570 100644
--- a/test/phpunit/SecurityTest.php
+++ b/test/phpunit/SecurityTest.php
@@ -1031,7 +1031,8 @@ class SecurityTest extends PHPUnit\Framework\TestCase
 		print "result18 = ".$result."\n";
 		$this->assertFalse($result);
 
-		$result = (string) dol_eval("(\$a.'aa')", 1, 0);
+		$a='ab';
+		$result = (string) dol_eval("(\$a.'s')", 1, 0);
 		print "result19 = ".$result."\n";
 		$this->assertStringContainsString('Bad string syntax to evaluate', $result);