diff --git a/packages/backend/src/misc/sql-like-escape.ts b/packages/backend/src/misc/sql-like-escape.ts
index 0c05255674..ffe61670ee 100644
--- a/packages/backend/src/misc/sql-like-escape.ts
+++ b/packages/backend/src/misc/sql-like-escape.ts
@@ -4,5 +4,5 @@
  */
 
 export function sqlLikeEscape(s: string) {
-	return s.replace(/([%_])/g, '\\$1');
+	return s.replace(/([%_\\])/g, '\\$1');
 }