diff --git a/src/index.android.js b/src/index.android.js
index 25fbf980..d6e0ab17 100644
--- a/src/index.android.js
+++ b/src/index.android.js
@@ -11,7 +11,7 @@ window.createView = (options) => {
 		// TODO: Implement a more efficient way to transfer large files
 		data: {
 			...options.data,
-			buf: new Uint8Array(options.buf).buffer
+			buf: new Uint8Array(options.buf)
 		},
 		onSaveAnnotations: (annotations) => {
 			postMessage('onSaveAnnotations', { annotations });
diff --git a/src/index.ios.js b/src/index.ios.js
index 40d0fe7c..0ee569b7 100644
--- a/src/index.ios.js
+++ b/src/index.ios.js
@@ -10,7 +10,7 @@ window.createView = (options) => {
 		container: document.getElementById('view'),
 		data: {
 			// TODO: Implement a more efficient way to transfer large files
-			buf: new Uint8Array(options.buf).buffer
+			buf: new Uint8Array(options.buf)
 		},
 		onSaveAnnotations: (annotations) => {
 			postMessage('onSaveAnnotations', { annotations });