diff --git a/doc/building.html b/doc/building.html
index 824b742ffe3..54828da9991 100644
--- a/doc/building.html
+++ b/doc/building.html
@@ -685,6 +685,8 @@ does not automatically locate the platform FreeType files.</p>
 Fontconfig</a> is required on all platforms except Windows and
 macOS.</p>
 <ul>
+<li>To install on an apt-based Linux, try running
+<code>sudo apt-get install     libfontconfig-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running
 <code>sudo yum install     fontconfig-devel</code>.</li>
 </ul>
diff --git a/doc/building.md b/doc/building.md
index 801b758f7e0..d6d89d7887f 100644
--- a/doc/building.md
+++ b/doc/building.md
@@ -480,6 +480,8 @@ if `configure` does not automatically locate the platform FreeType files.
 Fontconfig from [freedesktop.org Fontconfig](http://fontconfig.org) is required
 on all platforms except Windows and macOS.
 
+  * To install on an apt-based Linux, try running `sudo apt-get install
+    libfontconfig-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     fontconfig-devel`.