diff --git a/navigation.go b/navigation.go
index faecd50..bc6dfd9 100644
--- a/navigation.go
+++ b/navigation.go
@@ -122,7 +122,7 @@ type NavigationEvent struct {
 	Progress  uint8
 }
 
-var ErrNavProgress = errors.New("progress needs to between 0 and 100")
+var ErrNavProgress = errors.New("progress needs to be between 0 and 100")
 
 // Navigation sends a NavigationEvent to the watch
 func (i *Device) SetNavigation(ev NavigationEvent) error {