diff --git a/src/ram.py b/src/ram.py
index 127ce5f..02d1ad9 100644
--- a/src/ram.py
+++ b/src/ram.py
@@ -71,7 +71,7 @@ class Ram(object):
             value_3 = value_1 * value_2
             self.write_register(value_3, r3)
 
-    def op_ctrl(self, type_op, z, r1=None, r2=None)
+    def op_ctrl(self, type_op, z, r1=None, r2=None):
         if type_op == 'jump':
             if isinstance(z, int):
                 self.current += z