diff --git a/setup/backup.class.inc.php b/setup/backup.class.inc.php
index 5e9ffa1978..86edd3e978 100644
--- a/setup/backup.class.inc.php
+++ b/setup/backup.class.inc.php
@@ -595,13 +595,13 @@ public static function MakeSafeMySQLCommand($sMySQLBinDir, string $sCmd)
 			$sMySQLCommand = $sCmd;
 		} else {
 			$sMySQLBinDir = escapeshellcmd($sMySQLBinDir);
-			$sMySQLCommand = '"'.$sMySQLBinDir.'/$sCmd"';
+			$sMySQLCommand = $sMySQLBinDir.'/'.$sCmd;
 			if (!file_exists($sMySQLCommand)) {
 				throw new BackupException("$sCmd not found in $sMySQLBinDir");
 			}
 		}
 
-		return $sMySQLCommand;
+		return '"'.$sMySQLCommand.'"';
 	}
 }