diff --git a/doc/usage/extensions/imgconverter.rst b/doc/usage/extensions/imgconverter.rst
index 9c742d059..89b12bddb 100644
--- a/doc/usage/extensions/imgconverter.rst
+++ b/doc/usage/extensions/imgconverter.rst
@@ -12,7 +12,7 @@ This extension converts images in your document to appropriate format for
 builders.  For example, it allows you to use SVG images with LaTeX builder.
 As a result, you don't mind what image format the builder supports.
 
-Internally, this extension uses Imagemagick_ to convert images.
+Internally, this extension uses Imagemagick_ to convert images, you'll have to install it on your machine.
 
 .. _Imagemagick: https://www.imagemagick.org/script/index.php
 
diff --git a/tests/test_ext_imgconverter.py b/tests/test_ext_imgconverter.py
index 134947c87..de13bffe4 100644
--- a/tests/test_ext_imgconverter.py
+++ b/tests/test_ext_imgconverter.py
@@ -1,4 +1,6 @@
-"""Test sphinx.ext.imgconverter extension."""
+"""Test sphinx.ext.imgconverter extension.
+Requires ImageMagick to be installed, otherwise the conversion will be skipped and this test will fail.
+"""
 
 import os