diff --git a/src/helpers/config.ts b/src/helpers/config.ts
index 8fdc237..5ae91f4 100644
--- a/src/helpers/config.ts
+++ b/src/helpers/config.ts
@@ -252,6 +252,8 @@ export const CONTENT_TYPES = {
 	json: 'application/json',
 	mp4: 'video/mp4',
 	textPlain: 'text/plain',
+	model: 'model/gltf-binary',
+	audio: 'audio/mpeg',
 };
 
 export const AR_WALLETS = [{ type: WalletEnum.arConnect, logo: ASSETS.wallets.arconnect }];
@@ -345,9 +347,11 @@ export const RENDERERS = {
 	'3d': {
 		label: '3D',
 		domain: 'view_3d-pst',
+		contentType: CONTENT_TYPES.model,
 	},
 	audio: {
 		label: 'Audio',
 		domain: 'audio-renderer',
+		contentType: CONTENT_TYPES.audio,
 	},
 };
diff --git a/src/views/Upload/index.tsx b/src/views/Upload/index.tsx
index c82a312..0987122 100644
--- a/src/views/Upload/index.tsx
+++ b/src/views/Upload/index.tsx
@@ -374,16 +374,24 @@ export default function Upload() {
 					: uploadReducer.data.description
 					? uploadReducer.data.description
 					: stripFileExtension(data.file.name);
-				const type = data.file.type;
 				const balance = uploadReducer.data.useFractionalTokens ? Number(uploadReducer.data.contentTokens) : 1;
 
+				let contentType = data.file.type;
+				if (
+					(!contentType || !contentType.length) &&
+					uploadReducer.data.renderer &&
+					uploadReducer.data.renderer.includes('3d')
+				) {
+					contentType = CONTENT_TYPES.model;
+				}
+
 				try {
 					const assetTags: TagType[] = [
-						{ name: TAGS.keys.contentType, value: type },
+						{ name: TAGS.keys.contentType, value: contentType },
 						{ name: TAGS.keys.creator, value: arProvider.profile.id },
 						{ name: TAGS.keys.ans110.title, value: title },
 						{ name: TAGS.keys.ans110.description, value: description },
-						{ name: TAGS.keys.ans110.type, value: type },
+						{ name: TAGS.keys.ans110.type, value: contentType },
 						{ name: TAGS.keys.ans110.implements, value: TAGS.values.ansVersion },
 						{ name: TAGS.keys.dateCreated, value: dateTime },
 						{ name: 'Action', value: 'Add-Uploaded-Asset' },