diff --git a/build/sparse-profiles/sphinx-docs b/build/sparse-profiles/sphinx-docs
index 8e268929836d..6a2451057e15 100644
--- a/build/sparse-profiles/sphinx-docs
+++ b/build/sparse-profiles/sphinx-docs
@@ -5,6 +5,9 @@
 glob:docs/**
 glob:tools/moztreedocs/**
 
+# For icons
+glob:browser/branding/nightly/**
+
 # Potential docs sources
 glob:**/*.rst
 glob:**/*.md
diff --git a/docs/conf.py b/docs/conf.py
index 621a5b92f6ef..4e909e88c879 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -63,8 +63,8 @@ templates_path = ["_templates"]
 source_suffix = [".rst", ".md"]
 master_doc = "index"
 project = "Firefox Source Docs"
-html_logo = "../browser/branding/nightly/content/firefox-wordmark.svg"
-html_favicon = "../browser/branding/nightly/firefox.ico"
+html_logo = os.path.join(topsrcdir, "browser/branding/nightly/content/firefox-wordmark.svg")
+html_favicon = os.path.join(topsrcdir, "browser/branding/nightly/firefox.ico")
 
 exclude_patterns = ["_build", "_staging", "_venv"]
 pygments_style = "sphinx"