diff --git a/application/utils.inc.php b/application/utils.inc.php
index 6b69cbf16..13f45e0f7 100644
--- a/application/utils.inc.php
+++ b/application/utils.inc.php
@@ -601,14 +601,19 @@ class utils
 	/**
 	 * Checks if the memory limit is at least what is required
 	 *
-	 * @param int $iMemoryLimit set limit in bytes
+	 * @param int $iMemoryLimit set limit in bytes, use {@link utils::ConvertToBytes()} to convert current php.ini value
 	 * @param int $iRequiredLimit required limit in bytes
 	 *
 	 * @return bool
 	 */
 	public static function IsMemoryLimitOk($iMemoryLimit, $iRequiredLimit)
 	{
-		return ($iMemoryLimit >= $iRequiredLimit) || ($iMemoryLimit === -1);
+		if ($iMemoryLimit === -1) {
+			// -1 means : no limit (see https://www.php.net/manual/fr/ini.core.php#ini.memory-limit)
+			return true;
+		}
+
+		return ($iMemoryLimit >= $iRequiredLimit);
 	}
 
 	/**
diff --git a/test/application/UtilsTest.php b/test/application/UtilsTest.php
index d3a308e7b..1f51b2765 100644
--- a/test/application/UtilsTest.php
+++ b/test/application/UtilsTest.php
@@ -54,11 +54,10 @@ class UtilsTest extends \Combodo\iTop\Test\UnitTest\ItopTestCase
 	public function memoryLimitDataProvider()
 	{
 		return [
-			[true, '-1', 1024],
-			[true, -1, 1024],
-			[true, 1024, 1024],
-			[true, 2048, 1024],
-			[false, 1024, 2048],
+			'current -1, required 1024' => [true, -1, 1024],
+			'current 1024, required 1024' => [true, 1024, 1024],
+			'current 2048, required 1024' => [true, 2048, 1024],
+			'current 1024, required 2048' => [false, 1024, 2048],
 		];
 	}