diff --git a/BSModalPickerView/BSModalPickerView.m b/BSModalPickerView/BSModalPickerView.m
index 972460b..79a104b 100644
--- a/BSModalPickerView/BSModalPickerView.m
+++ b/BSModalPickerView/BSModalPickerView.m
@@ -59,7 +59,7 @@ - (void)setValues:(NSArray *)values {
 - (void)setSelectedIndex:(NSUInteger)selectedIndex {
     if (_selectedIndex != selectedIndex) {
         _selectedIndex = selectedIndex;
-        if (self.picker) {
+        if (_picker) {
             UIPickerView *pickerView = (UIPickerView *)self.picker;
             [pickerView selectRow:selectedIndex inComponent:0 animated:YES];
         }