diff --git a/lib/ImageViewer.js b/lib/ImageViewer.js
index 6f30afb..7cb045b 100644
--- a/lib/ImageViewer.js
+++ b/lib/ImageViewer.js
@@ -91,6 +91,8 @@ export class ImageViewer extends Component {
   }
 
   componentWillMount() {
+    const { source } = this.props;
+    
     this.state.layout.x.addListener((animated) => this.handleLayoutChange(animated, LAYOUT_ENUM.X));
     this.state.layout.y.addListener((animated) => this.handleLayoutChange(animated, LAYOUT_ENUM.Y));
 
@@ -102,7 +104,9 @@ export class ImageViewer extends Component {
       onPanResponderTerminate: this.handleRelease
     });
 
-    Image.prefetch(this.props.source);
+    if (typeof source === 'object' source.uri) {
+      Image.prefetch(this.props.source);
+    }
 
     Image.getSize(this.props.source, (width, height) => {
       this._imageSize = { width, height };