diff --git a/docs/functions/core/flags/setters/why2_set_encryption_separator.md b/docs/functions/core/flags/setters/why2_set_encryption_separator.md
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@@ -0,0 +1,45 @@
+<!--
+This is part of WHY2
+Copyright (C) 2022 Václav Šmejkal
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+# why2_set_encryption_separator
+
+## Parameters
+
+| Identifier                    | Data type |
+| ----------------------------- | --------- |
+| `encryption_separator_new`    | `char`    |
+
+## Attributes
+
+|                     |                                                |
+| ------------------  | ---------------------------------------------- |
+| **Return type**     | `void`                                         |
+| **Header comment**  | *This functions doesn't have any description.* |
+| **Added in commit** | [`1a5b58edf99547ba32fb047e80fb179f315182b9`](https://github.com/ENGO150/WHY2/commit/1a5b58edf99547ba32fb047e80fb179f315182b9) |
+
+## Description
+
+Sets `encryption_separator`, which is used in encryption/decryption for separating chars.
+
+---
+
+```
+104'-100'10306'-110'87
+```
+
+Example above uses `'` as `encryption_separator`.
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diff --git a/docs/functions/index.md b/docs/functions/index.md
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--- a/docs/functions/index.md
+++ b/docs/functions/index.md
@@ -60,6 +60,12 @@ You can find documentation for every *public* function of WHY2 below.
 | [`why2_get_memory_identifier`](./core/flags/getters/why2_get_memory_identifier) | Returns string used in linked list (in memory.c) for identifying nodes when running garbage collector |
 | [`why2_get_default_memory_identifier`](./core/flags/getters/why2_get_default_memory_identifier) | *This functions doesn't have any description.* |
 
+#### Setters
+
+| Function                                                              | Description                                       |
+| --------------------------------------------------------------------- | ------------------------------------------------- |
+| [`why2_set_encryption_separator`](./core/flags/setters/why2_set_encryption_separator) | *This functions doesn't have any description.* |
+
 ## Logger
 
 ## Chat
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