diff --git a/src/python_eulerian_video_magnification/magnify.py b/src/python_eulerian_video_magnification/magnify.py
index 61bc675..8b2a297 100644
--- a/src/python_eulerian_video_magnification/magnify.py
+++ b/src/python_eulerian_video_magnification/magnify.py
@@ -53,7 +53,7 @@ def _high(self) -> float:
         return self._data['high']
 
     @property
-    def _levels(self) -> float:
+    def _levels(self) -> int:
         return self._data['levels']
 
     @property