diff --git a/core/mutex.class.inc.php b/core/mutex.class.inc.php
index 1c11b6bc8..1f0457f12 100644
--- a/core/mutex.class.inc.php
+++ b/core/mutex.class.inc.php
@@ -45,7 +45,7 @@ class iTopMutex
 		}
 		$sDBName = $oConfig->GetDBName();
 		$sDBSubname = $oConfig->GetDBSubname();
-		$this->sName = 'itop.'.$sName;
+		$this->sName = $sName;
 		if (substr($sName, -strlen($sDBName.$sDBSubname)) != $sDBName.$sDBSubname)
 		{
 			// If the name supplied already ends with the expected suffix
@@ -54,6 +54,9 @@ class iTopMutex
 			$this->sName .= $sDBName.$sDBSubname;
 		}
 
+		// Limit the length of the name for MySQL > 5.7.5
+		$this->sName = 'itop.'.md5($this->sName);
+
 		$this->bLocked = false; // Not yet locked
 
 		if (!array_key_exists($this->sName, self::$aAcquiredLocks))