diff --git a/site/generations/library-next.ts b/site/generations/library-next.ts
index b2115e78c..077df4efe 100644
--- a/site/generations/library-next.ts
+++ b/site/generations/library-next.ts
@@ -1,9 +1,9 @@
 import {type SitemapData, SitemapDatum} from "@onlyoffice/eleventy-sitemap"
 import {type Data} from "@onlyoffice/eleventy-types"
 import {type Entity} from "@onlyoffice/library-declaration/next.js"
-import {cutSuffix} from "@onlyoffice/strings"
 import {LibraryDatum} from "../internal/library.tsx"
 import {Sitemap} from "../internal/sitemap.ts"
+import {Pather} from "../internal/url.ts"
 
 export interface Resource {
   list(): Entity[]
@@ -11,8 +11,8 @@ export interface Resource {
 }
 
 export function data(r: Resource): Data {
-  const sp = new SpecificPather()
-  const vp = new VirtualPather()
+  const sp = new Pather()
+  const vp = new Pather()
 
   const sr: Record<string, SitemapData> = {}
 
@@ -50,8 +50,33 @@ export function data(r: Resource): Data {
       if (!data.pagination || !data.pagination.items) {
         throw new Error("No pagination")
       }
+
       const [e]: Entity[] = data.pagination.items
-      const p = vp.path(r, e)
+
+      let a: string[] = []
+      let b: number[] = []
+
+      let c: Entity | undefined = e
+
+      while (c) {
+        if (c.type === "group") {
+          a.push(c.group.name)
+          b.push(c.id)
+        }
+
+        if (c.type === "declaration") {
+          a.push(c.declaration.name)
+          b.push(c.id)
+        }
+
+        c = r.retrieve(c.parentId)
+      }
+
+      a = a.reverse()
+      b = b.reverse()
+
+      const p = vp.pathify(a, b)
+
       return `${p}/index.html`
     },
 
@@ -59,8 +84,28 @@ export function data(r: Resource): Data {
       if (!data.pagination || !data.pagination.items) {
         throw new Error("No pagination")
       }
+
       const [e]: Entity[] = data.pagination.items
-      const p = sp.path(r, e)
+
+      let a: string[] = []
+      let b: number[] = []
+
+      let c: Entity | undefined = e
+
+      while (c) {
+        if (c.type === "declaration") {
+          a.push(c.declaration.name)
+          b.push(c.id)
+        }
+
+        c = r.retrieve(c.parentId)
+      }
+
+      a = a.reverse()
+      b = b.reverse()
+
+      const p = sp.pathify(a, b)
+
       return `${p}/index.html`
     },
 
@@ -151,96 +196,3 @@ export function data(r: Resource): Data {
     },
   }
 }
-
-class VirtualPather implements Pather {
-  #m = new Map<string, number>()
-
-  path(r: Resource, e: Entity): string {
-    let s = ""
-    let i = 0
-
-    let c: Entity | undefined = e
-
-    while (c) {
-      if (c.type === "group") {
-        const n = sanitizeName(c.group.name)
-        s = `${n}/${s}`
-      }
-
-      if (c.type === "declaration") {
-        const n = sanitizeName(c.declaration.name)
-        s = `${n}/${s}`
-      }
-
-      c = r.retrieve(c.parentId)
-    }
-
-    [s] = cutSuffix(s, "/")
-
-    while (true) {
-      const id = this.#m.get(s)
-
-      if (!id) {
-        this.#m.set(s, e.id)
-        break
-      }
-
-      if (id === e.id) {
-        break
-      }
-
-      i += 1
-      s = `${s}-${i}`
-    }
-
-    return s
-  }
-}
-
-class SpecificPather implements Pather {
-  #m = new Map<string, number>()
-
-  path(r: Resource, e: Entity): string {
-    let s = ""
-    let i = 0
-
-    let c: Entity | undefined = e
-
-    while (c) {
-      if (c.type === "declaration") {
-        const n = sanitizeName(c.declaration.name)
-        s = `${n}/${s}`
-      }
-
-      c = r.retrieve(c.parentId)
-    }
-
-    [s] = cutSuffix(s, "/")
-
-    while (true) {
-      const id = this.#m.get(s)
-
-      if (!id) {
-        this.#m.set(s, e.id)
-        break
-      }
-
-      if (id === e.id) {
-        break
-      }
-
-      i += 1
-      s = `${s}-${i}`
-    }
-
-    return s
-  }
-}
-
-interface Pather {
-  path(r: Resource, e: Entity): string
-}
-
-function sanitizeName(t: string): string {
-  return t.replaceAll("/", " ")
-}
diff --git a/site/internal/url.ts b/site/internal/url.ts
index 86c189755..c304e878b 100644
--- a/site/internal/url.ts
+++ b/site/internal/url.ts
@@ -172,3 +172,76 @@ function defaultPath(p: Page): string {
   const c = posix.dirname(p.filePathStem)
   return posix.join(c, b)
 }
+
+export class Pather {
+  /**
+   * The index where the key is a path and the value is a unique identifier.
+   */
+  #x = new Map<string, number>()
+
+  /**
+   * The index where the key is a path, and the value is a number of duplicates.
+   */
+  #y = new Map<string, number>()
+
+  /**
+   * @param a A list of path segments.
+   * @param b A corresponding list of unique identifiers.
+   * @returns A unique path.
+   */
+  pathify(a: string[], b: number[]): string {
+    const a0: string[] = []
+
+    for (let s of a) {
+      s = s.replaceAll("/", " ")
+      a0.push(s)
+    }
+
+    const b0 = [...b]
+
+    for (let i = 0; i < a0.length; i += 1) {
+      const c = a0.slice(0, i + 1)
+      const s = c[c.length - 1]
+
+      let x0 = b0[i]
+      let y0 = 0
+
+      let k = ""
+
+      while (true) {
+        if (y0 !== 0) {
+          c[c.length - 1] = `${s}-${y0}`
+        }
+
+        k = c.join("/")
+
+        const x1 = this.#x.get(k)
+        if (x1 === undefined) {
+          break
+        }
+
+        const y1 = this.#y.get(k)
+        if (y1 === undefined) {
+          break
+        }
+
+        if (x1 === x0) {
+          break
+        }
+
+        x0 = x1
+        y0 = y1 + 1
+      }
+
+      this.#x.set(k, x0)
+      this.#y.set(k, y0)
+
+      a0[i] = c[c.length - 1]
+      b0[i] = x0
+    }
+
+    const p = a0.join("/")
+
+    return p
+  }
+}