diff --git a/src/components/bar.cpp b/src/components/bar.cpp
index 8b0dade3..fd970b73 100644
--- a/src/components/bar.cpp
+++ b/src/components/bar.cpp
@@ -200,16 +200,16 @@ bar::bar(connection& conn, signal_emitter& emitter, const config& config, const
   auto bcolor = m_conf.get(bs, "border-color", "#00000000"s);
 
   m_opts.borders.emplace(edge::TOP, border_settings{});
-  m_opts.borders[edge::TOP].size = m_conf.get(bs, "border-top", bsize);
+  m_opts.borders[edge::TOP].size = m_conf.deprecated(bs, "border-top", "border-top-size", bsize);
   m_opts.borders[edge::TOP].color = color::parse(m_conf.get(bs, "border-top-color", bcolor));
   m_opts.borders.emplace(edge::BOTTOM, border_settings{});
-  m_opts.borders[edge::BOTTOM].size = m_conf.get(bs, "border-bottom", bsize);
+  m_opts.borders[edge::BOTTOM].size = m_conf.deprecated(bs, "border-bottom", "border-bottom-size", bsize);
   m_opts.borders[edge::BOTTOM].color = color::parse(m_conf.get(bs, "border-bottom-color", bcolor));
   m_opts.borders.emplace(edge::LEFT, border_settings{});
-  m_opts.borders[edge::LEFT].size = m_conf.get(bs, "border-left", bsize);
+  m_opts.borders[edge::LEFT].size = m_conf.deprecated(bs, "border-left", "border-left-size", bsize);
   m_opts.borders[edge::LEFT].color = color::parse(m_conf.get(bs, "border-left-color", bcolor));
   m_opts.borders.emplace(edge::RIGHT, border_settings{});
-  m_opts.borders[edge::RIGHT].size = m_conf.get(bs, "border-right", bsize);
+  m_opts.borders[edge::RIGHT].size = m_conf.deprecated(bs, "border-right", "border-right-size", bsize);
   m_opts.borders[edge::RIGHT].color = color::parse(m_conf.get(bs, "border-right-color", bcolor));
 
   // Load geometry values
diff --git a/src/components/config.cpp b/src/components/config.cpp
index b066ead7..c65463c1 100644
--- a/src/components/config.cpp
+++ b/src/components/config.cpp
@@ -67,7 +67,7 @@ string config::section() const {
 void config::warn_deprecated(const string& section, const string& key, string replacement) const {
   try {
     auto value = get<string>(section, key);
-    m_log.warn("The config parameter `%s.%s` is deprecated, use `%s` instead.", section, key, move(replacement));
+    m_log.warn("The config parameter `%s.%s` is deprecated, use `%s.%s` instead.", section, key, section, move(replacement));
   } catch (const key_error& err) {
   }
 }