diff --git a/src/components/Catalog.vue b/src/components/Catalog.vue
index e87a1a049..18c4a90c0 100644
--- a/src/components/Catalog.vue
+++ b/src/components/Catalog.vue
@@ -363,8 +363,7 @@ export default {
           // recommended
           identifier: this.catalog.id,
           keywords: this._keywords,
-          license:
-            this._license && `https://spdx.org/licenses/${this._license}.html`,
+          license: this.licenseUrl,
           isBasedOn: this.url,
           version: this.version,
           url: this.path,
@@ -429,8 +428,27 @@ export default {
       );
     },
     license() {
+      if (this._license === "proprietary") {
+        if (this.licenseUrl != null) {
+          return `<a href="${this.licenseUrl}">${this._license}</a>`;
+        }
+
+        return this._license;
+      }
+
       return spdxToHTML(this._license);
     },
+    licenseUrl() {
+      if (this._license === "proprietary") {
+        return this.links
+          .concat((this.rootCatalog && this.rootCatalog.links) || [])
+          .filter(x => x.rel === "license")
+          .map(x => x.href)
+          .pop();
+      }
+
+      return `https://spdx.org/licenses/${this._license}.html`;
+    },
     links() {
       // REQUIRED
       return this.catalog.links;
diff --git a/src/components/Item.vue b/src/components/Item.vue
index ce52e3351..f36bb6e9c 100644
--- a/src/components/Item.vue
+++ b/src/components/Item.vue
@@ -267,8 +267,7 @@ export default {
         // recommended
         identifier: this.item.id,
         keywords: this.keywords,
-        license:
-          this._license && `https://spdx.org/licenses/${this._license}.html`,
+        license: this.licenseUrl,
         isBasedOn: this.url,
         url: this.path,
         includedInDataCatalog: [this.collectionLink, this.parentLink].filter(x => !!x).map(
@@ -396,8 +395,31 @@ export default {
       );
     },
     license() {
+      if (this._license === "proprietary") {
+        if (this.licenseUrl != null) {
+          return `<a href="${this.licenseUrl}">${this._license}</a>`;
+        }
+
+        return this._license;
+      }
+
       return spdxToHTML(this._license);
     },
+    licenseUrl() {
+      if (this._license === "proprietary") {
+        return this.links
+          .concat(
+            ((this.collection && this.collection.links) || []).concat(
+              (this.rootCatalog && this.rootCatalog.links) || []
+            )
+          )
+          .filter(x => x.rel === "license")
+          .map(x => x.href)
+          .pop();
+      }
+
+      return `https://spdx.org/licenses/${this._license}.html`;
+    },
     licensor() {
       return this.providers
         .filter(x => x.roles.includes("licensor"))