diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini
index 144691c00cd03..3687e0fbd4caf 100644
--- a/custom/conf/app.example.ini
+++ b/custom/conf/app.example.ini
@@ -992,7 +992,7 @@ ROUTER = console
 ;;
 ;; List of file extensions for which lines should be wrapped in the Monaco editor
 ;; Separate extensions with a comma. To line wrap files without an extension, just put a comma
-;LINE_WRAP_EXTENSIONS = .txt,.md,.markdown,.mdown,.mkd,
+;LINE_WRAP_EXTENSIONS = .txt,.md,.markdown,.mdown,.mkd,.livemd,
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -1334,7 +1334,7 @@ ROUTER = console
 ;;
 ;; List of file extensions that should be rendered/edited as Markdown
 ;; Separate the extensions with a comma. To render files without any extension as markdown, just put a comma
-;FILE_EXTENSIONS = .md,.markdown,.mdown,.mkd
+;FILE_EXTENSIONS = .md,.markdown,.mdown,.mkd,.livemd
 ;;
 ;; Enables math inline and block detection
 ;ENABLE_MATH = true
diff --git a/docs/content/doc/administration/config-cheat-sheet.en-us.md b/docs/content/doc/administration/config-cheat-sheet.en-us.md
index 74110ea443ba1..be97edadb5732 100644
--- a/docs/content/doc/administration/config-cheat-sheet.en-us.md
+++ b/docs/content/doc/administration/config-cheat-sheet.en-us.md
@@ -117,7 +117,7 @@ In addition there is _`StaticRootPath`_ which can be set as a built-in at build
 
 ### Repository - Editor (`repository.editor`)
 
-- `LINE_WRAP_EXTENSIONS`: **.txt,.md,.markdown,.mdown,.mkd,**: List of file extensions for which lines should be wrapped in the Monaco editor. Separate extensions with a comma. To line wrap files without an extension, just put a comma
+- `LINE_WRAP_EXTENSIONS`: **.txt,.md,.markdown,.mdown,.mkd,.livemd,**: List of file extensions for which lines should be wrapped in the Monaco editor. Separate extensions with a comma. To line wrap files without an extension, just put a comma
 - `PREVIEWABLE_FILE_MODES`: **markdown**: Valid file modes that have a preview API associated with them, such as `api/v1/markdown`. Separate the values by commas. The preview tab in edit mode won't be displayed if the file extension doesn't match.
 
 ### Repository - Pull Request (`repository.pull-request`)
@@ -277,6 +277,7 @@ The following configuration set `Content-Type: application/vnd.android.package-a
 - `CUSTOM_URL_SCHEMES`: Use a comma separated list (ftp,git,svn) to indicate additional
   URL hyperlinks to be rendered in Markdown. URLs beginning in http and https are
   always displayed
+- `FILE_EXTENSIONS`: **.md,.markdown,.mdown,.mkd,.livemd**: List of file extensions that should be rendered/edited as Markdown. Separate the extensions with a comma. To render files without any extension as markdown, just put a comma.
 - `ENABLE_MATH`: **true**: Enables detection of `\(...\)`, `\[...\]`, `$...$` and `$$...$$` blocks as math blocks.
 
 ## Server (`server`)
diff --git a/modules/setting/markup.go b/modules/setting/markup.go
index 969e30e888f8d..6c2246342be8e 100644
--- a/modules/setting/markup.go
+++ b/modules/setting/markup.go
@@ -33,7 +33,7 @@ var Markdown = struct {
 }{
 	EnableHardLineBreakInComments:  true,
 	EnableHardLineBreakInDocuments: false,
-	FileExtensions:                 strings.Split(".md,.markdown,.mdown,.mkd", ","),
+	FileExtensions:                 strings.Split(".md,.markdown,.mdown,.mkd,.livemd", ","),
 	EnableMath:                     true,
 }
 
diff --git a/modules/setting/repository.go b/modules/setting/repository.go
index bae3c658a4855..20ed6d0dcd559 100644
--- a/modules/setting/repository.go
+++ b/modules/setting/repository.go
@@ -168,7 +168,7 @@ var (
 		Editor: struct {
 			LineWrapExtensions []string
 		}{
-			LineWrapExtensions: strings.Split(".txt,.md,.markdown,.mdown,.mkd,", ","),
+			LineWrapExtensions: strings.Split(".txt,.md,.markdown,.mdown,.mkd,.livemd,", ","),
 		},
 
 		// Repository upload settings