diff --git a/src/NavBar.js b/src/NavBar.js
index 42f93838a..66ff33c84 100644
--- a/src/NavBar.js
+++ b/src/NavBar.js
@@ -92,14 +92,14 @@ export default class extends React.Component {
         const childState = this.props.navigationState.children[this.props.navigationState.index];
         if (childState.onRight && childState.rightTitle){
             return (
-                <TouchableOpacity style={[styles.rightButton, childState.rightButtonStyle]} onPress={childState.onRight}>
+                <TouchableOpacity style={[styles.rightButton, childState.rightButtonStyle]} onPress={childState.onRight.bind(null, childState)}>
                     <Text style={[styles.barRightButtonText, childState.rightButtonTextStyle]}>{childState.rightTitle}</Text>
                 </TouchableOpacity>
             );
         }
         if (state.onRight && state.rightTitle){
             return (
-                <TouchableOpacity style={[styles.rightButton, state.rightButtonStyle]} onPress={state.onRight}>
+                <TouchableOpacity style={[styles.rightButton, state.rightButtonStyle]} onPress={state.onRight.bind(null, state)}>
                     <Text style={[styles.barRightButtonText, state.rightButtonTextStyle]}>{state.rightTitle}</Text>
                 </TouchableOpacity>
             );
@@ -111,14 +111,14 @@ export default class extends React.Component {
         const childState = this.props.navigationState.children[this.props.navigationState.index];
         if (childState.onLeft && childState.leftTitle){
             return (
-                <TouchableOpacity style={[styles.leftButton, childState.leftButtonStyle]} onPress={childState.onLeft}>
+                <TouchableOpacity style={[styles.leftButton, childState.leftButtonStyle]} onPress={childState.onLeft.bind(null, childState)}>
                     <Text style={[styles.barLeftButtonText, childState.leftButtonTextStyle]}>{childState.leftTitle}</Text>
                 </TouchableOpacity>
             );
         }
         if (state.onLeft && state.leftTitle){
             return (
-                <TouchableOpacity style={[styles.leftButton, state.leftButtonStyle]} onPress={state.onLeft}>
+                <TouchableOpacity style={[styles.leftButton, state.leftButtonStyle]} onPress={state.onLeft.bind(null, state)}>
                     <Text style={[styles.barLeftButtonText, state.leftButtonTextStyle]}>{state.leftTitle}</Text>
                 </TouchableOpacity>
             );