diff --git a/ui/src/utils/packetTypes.test.ts b/ui/src/utils/packetTypes.test.ts
index 4e9f6e04..01468908 100644
--- a/ui/src/utils/packetTypes.test.ts
+++ b/ui/src/utils/packetTypes.test.ts
@@ -212,17 +212,12 @@ describe('formatPacketType', () => {
     ).toBe('Raw Video (1920x1080, Rgba8)');
   });
 
-  it('renders null-valued RawVideo fields literally (template renderer ignores null wildcard_value)', () => {
-    // See PR follow-up note: `formatWithTemplate` short-circuits when the meta's
-    // `wildcard_value` is null, so null-valued fields render as the literal string "null"
-    // rather than "*". `canConnectPair` does NOT have this asymmetry — it correctly
-    // treats null as a valid wildcard. This test pins the current behavior; do not
-    // change the assertion without also auditing the renderer.
+  it('renders null-valued RawVideo wildcard fields as *', () => {
     expect(
       formatPacketType({
         RawVideo: { width: null, height: null, pixel_format: 'Rgba8' },
       })
-    ).toBe('Raw Video (nullxnull, Rgba8)');
+    ).toBe('Raw Video (*x*, Rgba8)');
   });
 
   it('renders the Custom template with the supplied type_id', () => {
diff --git a/ui/src/utils/packetTypes.ts b/ui/src/utils/packetTypes.ts
index c4230624..889e8783 100644
--- a/ui/src/utils/packetTypes.ts
+++ b/ui/src/utils/packetTypes.ts
@@ -36,9 +36,8 @@ function formatWithTemplate(
     let isWildcard = false;
     if (compat && compat.kind === 'structfieldwildcard') {
       const rule = compat.fields.find((f) => f.name === field);
-      const wildcard = rule?.wildcard_value;
-      if (wildcard !== undefined && wildcard !== null) {
-        isWildcard = deepEqual(value, wildcard);
+      if (rule && 'wildcard_value' in rule) {
+        isWildcard = deepEqual(value, rule.wildcard_value);
       }
     }
     if (isWildcard) return '*';