diff --git a/yamdl_playground/core/simple_tags.py b/yamdl_playground/core/simple_tags.py
index db5f944..b493551 100644
--- a/yamdl_playground/core/simple_tags.py
+++ b/yamdl_playground/core/simple_tags.py
@@ -3,8 +3,8 @@ from django.template.library import parse_bits, SimpleNode
 from functools import wraps
 
 class SimpleBlockNode(SimpleNode):
-    def __init__(self, nodelist, func, takes_context, args, kwargs, target_var):
-        super().__init__(func, takes_context, args, kwargs, target_var)
+    def __init__(self, nodelist, *args, **kwargs):
+        super().__init__(*args, **kwargs)
         self.nodelist = nodelist
 
     def get_resolved_arguments(self, context):
@@ -25,11 +25,14 @@ def simple_block_tag(register, takes_context=None, name=None):
             if len(bits) >= 2 and bits[-2] == "as":
                 target_var = bits[-1]
                 bits = bits[:-2]
-            bits = [''] + bits  # add placeholder for content arg
+
+            params = argspec.args
+            del params[1 if takes_context else 0]
+
             args, kwargs = parse_bits(
                 parser=parser,
                 bits=bits,
-                params=argspec.args,
+                params=params,
                 varargs=argspec.varargs,
                 varkw=argspec.varkw,
                 defaults=argspec.defaults,
@@ -38,7 +41,7 @@ def simple_block_tag(register, takes_context=None, name=None):
                 takes_context=takes_context,
                 name=function_name
             )
-            args = args[1:]  # remove content placeholder
+
             nodelist = parser.parse((f'end{function_name}',))
             parser.delete_first_token()
             return SimpleBlockNode(nodelist, func, takes_context, args, kwargs, target_var)