diff --git a/script/utils.py b/script/utils.py
index cc94fdd..798a1eb 100644
--- a/script/utils.py
+++ b/script/utils.py
@@ -50,7 +50,7 @@ def get_image_array(ip):
     else:
         return ip.getProcessor().getIntArray()
 
-def open_image(file_name)
+def open_image(file_name):
     file_name = get_context().setup.expandPath(file_name)
     return Opener().openTiff(file_name, 1)