diff --git a/app.py b/app.py
index 7738666..2a34d63 100644
--- a/app.py
+++ b/app.py
@@ -31,7 +31,7 @@
         "standard components": "./",
         "custom components": "./custom",
     },
-    logo=st.session_state.logo,
+    logo=st.session_state.logo.lower(),
 )
 
 pg = st.navigation(
diff --git a/pages/custom.py b/pages/custom.py
index 566896f..06e3821 100644
--- a/pages/custom.py
+++ b/pages/custom.py
@@ -153,7 +153,7 @@
     st_undp.header(
         title="{title}",
         subtitle="{subtitle}",
-        logo="{logo}",
+        logo="{logo.lower()}",
     )
     """.strip()
     with st.expander("Show Code"):