diff --git a/fatamorgana/basic.py b/fatamorgana/basic.py
index 33c8f4d..0b288a2 100644
--- a/fatamorgana/basic.py
+++ b/fatamorgana/basic.py
@@ -1174,7 +1174,7 @@ class ArbitraryRepetition:
         self.y_displacements = y_displacements
 
     @staticmethod
-    def read(stream: io.BufferedIOBase, repetition_type) -> 'ArbitraryRepetition':
+    def read(stream: io.BufferedIOBase, repetition_type: int) -> 'ArbitraryRepetition':
         """
         Read an ArbitraryRepetition from a stream.