diff --git a/Sources/FSPagerView.swift b/Sources/FSPagerView.swift
index a9ba47b..6d84e95 100644
--- a/Sources/FSPagerView.swift
+++ b/Sources/FSPagerView.swift
@@ -16,7 +16,7 @@ import UIKit
 public protocol FSPagerViewDataSource: NSObjectProtocol {
     
     /// Asks your data source object for the number of items in the pager view.
-    @objc(numberOfItemsInpagerView:)
+    @objc(numberOfItemsInPagerView:)
     func numberOfItems(in pagerView: FSPagerView) -> Int
     
     /// Asks your data source object for the cell that corresponds to the specified item in the pager view.