diff --git a/src/lib/utils.server.ts b/src/lib/utils.server.ts
index 96a47ee..0b04a13 100644
--- a/src/lib/utils.server.ts
+++ b/src/lib/utils.server.ts
@@ -84,5 +84,5 @@ export const getFuncSigBySelector = async (selector: string): Promise<string> =>
     return data.result.function[selector][0].name
   }
 
-  return 'unknown()'
+  return `unknown_${selector}()`
 }
diff --git a/src/routes/diamond/[address]/+page.server.ts b/src/routes/diamond/[address]/+page.server.ts
index 84c13a5..f2a4249 100644
--- a/src/routes/diamond/[address]/+page.server.ts
+++ b/src/routes/diamond/[address]/+page.server.ts
@@ -102,6 +102,7 @@ const buildFacet = async (
 
   const fileredAbi: Abi = facet.abi.filter((item) => {
     if (item.type !== 'function') return true
+    if (item.name.indexOf('unknown_') > -1) return true
     if (!item.outputs) {
       item.outputs = []
     }
diff --git a/src/routes/diamond/[address]/FacetsTable.svelte b/src/routes/diamond/[address]/FacetsTable.svelte
index 601f3d8..69c8c06 100644
--- a/src/routes/diamond/[address]/FacetsTable.svelte
+++ b/src/routes/diamond/[address]/FacetsTable.svelte
@@ -70,17 +70,31 @@
                       </code>
                       <Separator orientation="vertical" />
 
-                      <code
-                        class="rounded bg-muted px-[0.3rem] py-[0.2rem] font-mono text-sm font-semibold"
-                      >
-                        {toFunctionSelector(m)}
-                      </code>
-                      <Button
-                        variant="ghost"
-                        on:click={() => copyToClipboard(toFunctionSelector(m))}
-                      >
-                        <Copy />
-                      </Button>
+                      {#if m.name.indexOf('unknown_') > -1}
+                        <code
+                          class="rounded bg-muted px-[0.3rem] py-[0.2rem] font-mono text-sm font-semibold"
+                        >
+                          {m.name.split('_')[1]}
+                        </code>
+                        <Button
+                          variant="ghost"
+                          on:click={() => copyToClipboard(m.name.split('_')[1])}
+                        >
+                          <Copy />
+                        </Button>
+                      {:else}
+                        <code
+                          class="rounded bg-muted px-[0.3rem] py-[0.2rem] font-mono text-sm font-semibold"
+                        >
+                          {toFunctionSelector(m)}
+                        </code>
+                        <Button
+                          variant="ghost"
+                          on:click={() => copyToClipboard(toFunctionSelector(m))}
+                        >
+                          <Copy />
+                        </Button>
+                      {/if}
                     </div>
                   </li>
                 {/each}
diff --git a/src/routes/diamond/[address]/json/+server.ts b/src/routes/diamond/[address]/json/+server.ts
index 3c5f7ca..53e27e6 100644
--- a/src/routes/diamond/[address]/json/+server.ts
+++ b/src/routes/diamond/[address]/json/+server.ts
@@ -105,6 +105,11 @@ const buildFacet = async (
 
   const fileredAbi: Abi = facet.abi.filter((item) => {
     if (item.type !== 'function') return true
+    if (item.name.indexOf('unknown_') > -1) {
+      if (selectors.includes(item.name.split('_')[1])) {
+        return true
+      }
+    }
     if (!item.outputs) {
       item.outputs = []
     }