diff --git a/Sources/PagerTabStripViewController.swift b/Sources/PagerTabStripViewController.swift
index 6ae787f..567731f 100644
--- a/Sources/PagerTabStripViewController.swift
+++ b/Sources/PagerTabStripViewController.swift
@@ -381,7 +381,7 @@ open class PagerTabStripViewController: UIViewController, UIScrollViewDelegate {
         guard !viewControllers.isEmpty else {
             fatalError("viewControllers(for:) should provide at least one child view controller")
         }
-        viewControllers.forEach { if !($0 is IndicatorInfoProvider) { fatalError("Every view controller provided by PagerTabStripDataSource's viewControllers(for:) method must conform to  InfoProvider") }}
+        viewControllers.forEach { if !($0 is IndicatorInfoProvider) { fatalError("Every view controller provided by PagerTabStripDataSource's viewControllers(for:) method must conform to IndicatorInfoProvider") }}
 
     }