diff --git a/src/Text/Pandoc/Extensions.hs b/src/Text/Pandoc/Extensions.hs
index c4d54c06e..9c55d0a7a 100644
--- a/src/Text/Pandoc/Extensions.hs
+++ b/src/Text/Pandoc/Extensions.hs
@@ -517,6 +517,7 @@ getAllExtensions f = universalExtensions <> getAll f
     , Ext_attributes
     , Ext_sourcepos
     , Ext_yaml_metadata_block
+    , Ext_rebase_relative_paths
     ]
   getAll "commonmark_x"    = getAll "commonmark"
   getAll "org"             = autoIdExtensions <>
diff --git a/src/Text/Pandoc/Readers/CommonMark.hs b/src/Text/Pandoc/Readers/CommonMark.hs
index b099a9b50..228e65312 100644
--- a/src/Text/Pandoc/Readers/CommonMark.hs
+++ b/src/Text/Pandoc/Readers/CommonMark.hs
@@ -112,5 +112,7 @@ specFor opts = foldr ($) defaultSyntaxSpec exts
            | isEnabled Ext_implicit_header_references opts ] ++
          [ (footnoteSpec <>) | isEnabled Ext_footnotes opts ] ++
          [ (definitionListSpec <>) | isEnabled Ext_definition_lists opts ] ++
-         [ (taskListSpec <>) | isEnabled Ext_task_lists opts ]
+         [ (taskListSpec <>) | isEnabled Ext_task_lists opts ] ++
+         [ (rebaseRelativePathsSpec <>)
+           | isEnabled Ext_rebase_relative_paths opts ]
 
diff --git a/test/command/3752.md b/test/command/3752.md
index df8af0ba1..2e96b531e 100644
--- a/test/command/3752.md
+++ b/test/command/3752.md
@@ -42,3 +42,19 @@ A spider: [spider]
 <h1 id="chapter-two">Chapter two</h1>
 <p>A spider: <img src="command/chap2/spider.png" alt="spider" /></p>
 ```
+
+```
+% pandoc command/chap1/text.md command/chap2/text.md -f commonmark+rebase_relative_paths -t html
+^D
+<h1>Chapter one</h1>
+<p>A spider: <img src="command/chap1/spider.png" alt="spider" /></p>
+<p>Another spider: <img src="command/chap2/spider.png" alt="another spider" /></p>
+<p>The moon: <img src="command/chap1/../../lalune.jpg" alt="moon" /></p>
+<p>Link to <a href="command/chap1/spider.png">spider picture</a>.</p>
+<p>URL left alone: <a href="https://pandoc.org/MANUAL.html">manual</a>.</p>
+<p>Absolute path left alone: <a href="/foo/bar/baz.png">absolute</a>.</p>
+<p>Link to fragment: <a href="#chapter-two">chapter two</a>.</p>
+<p>Empty path: <a href="">empty</a>.</p>
+<h1>Chapter two</h1>
+<p>A spider: <img src="command/chap2/spider.png" alt="spider" /></p>
+```