diff --git a/js/plugins/google-genai/src/vertexai/converters.ts b/js/plugins/google-genai/src/vertexai/converters.ts
index 23c5db6852..e9f8e43b44 100644
--- a/js/plugins/google-genai/src/vertexai/converters.ts
+++ b/js/plugins/google-genai/src/vertexai/converters.ts
@@ -454,7 +454,7 @@ export function fromVeoOperation(
           if (veoMedia.bytesBase64Encoded) {
             return {
               media: {
-                url: `data:${veoMedia.mimeType}:base64,${veoMedia.bytesBase64Encoded}`,
+                url: `data:${veoMedia.mimeType};base64,${veoMedia.bytesBase64Encoded}`,
                 contentType: veoMedia.mimeType,
               },
             };
@@ -462,7 +462,7 @@ export function fromVeoOperation(
 
           return {
             media: {
-              url: veoMedia.gcsUri ?? '',
+              url: veoMedia.gcsUri ?? veoMedia.uri ?? '',
               contentType: veoMedia.mimeType,
             },
           };
diff --git a/js/plugins/google-genai/src/vertexai/types.ts b/js/plugins/google-genai/src/vertexai/types.ts
index 77a9f834f1..d1aa125874 100644
--- a/js/plugins/google-genai/src/vertexai/types.ts
+++ b/js/plugins/google-genai/src/vertexai/types.ts
@@ -306,6 +306,7 @@ export declare interface VeoMedia {
   bytesBase64Encoded?: string;
   gcsUri?: string;
   mimeType?: string;
+  uri?: string;
 }
 
 export declare interface VeoReferenceImage {
diff --git a/js/plugins/google-genai/tests/vertexai/converters_test.ts b/js/plugins/google-genai/tests/vertexai/converters_test.ts
index 2930b92782..cca6023d28 100644
--- a/js/plugins/google-genai/tests/vertexai/converters_test.ts
+++ b/js/plugins/google-genai/tests/vertexai/converters_test.ts
@@ -632,7 +632,7 @@ describe('Vertex AI Converters', () => {
               },
               {
                 media: {
-                  url: 'data:video/webm:base64,VID2DATA',
+                  url: 'data:video/webm;base64,VID2DATA',
                   contentType: 'video/webm',
                 },
               },