diff --git a/components/content/StructureDb.vue b/components/content/StructureDb.vue
index eab3701a8b4e91bc0bf99569443babb5a1a55614..7d97afdda22d8072930209ef89511b320aa07bc0 100644
--- a/components/content/StructureDb.vue
+++ b/components/content/StructureDb.vue
@@ -159,7 +159,7 @@ function pdbNameToCif(pdbPath: string) {
 
 
 function buildStructureUrl(item: StructureItem) {
-    return [`/${item.system}/${pdbNameToCif(item.pdb)}`, `/${item.system}/${item.pdb}`]
+    return [`/${item.system.toLocaleLowerCase()}/${pdbNameToCif(item.pdb)}`, `/${item.system}/${item.pdb}`]
 }
 
 function displayStructure(item: StructureItem) {