diff --git a/site/src/api/api.ts b/site/src/api/api.ts
index e9d5e3fbf3f15..3ad195f2bd9e4 100644
--- a/site/src/api/api.ts
+++ b/site/src/api/api.ts
@@ -1877,7 +1877,7 @@ class ApiMethods {
 
 	uploadFile = async (file: File): Promise<TypesGen.UploadResponse> => {
 		const response = await this.axios.post("/api/v2/files", file, {
-			headers: { "Content-Type": "application/x-tar" },
+			headers: { "Content-Type": file.type },
 		});
 
 		return response.data;