1 files changed, 2 insertions, 0 deletions
diff --git a/errors.go b/errors.go
index 7f318af..154f3af 100644
--- a/errors.go
+++ b/errors.go
@@ -7,6 +7,8 @@ import (
 
 var NotInitialized error = errors.New("your application config not initialized")
 
+var VersionMismatch error = errors.New("your PB version does not match")
+
 // Finally, declare a package-level variable of your new type.
 // This is the "sentinel" error that users will compare against.
 var ErrNotInitialized = NotInitializedError{}