diff --git a/src/django_components/slots.py b/src/django_components/slots.py
index f75ae263..8b989333 100644
--- a/src/django_components/slots.py
+++ b/src/django_components/slots.py
@@ -87,18 +87,20 @@ class ComponentIdMixin:
         self._component_id = value
 
 
-class SlotNode(Node, ComponentIdMixin):
+class SlotNode(Node):
     def __init__(
         self,
         name: str,
         nodelist: NodeList,
         is_required: bool = False,
         is_default: bool = False,
+        node_id: Optional[str] = None,
     ):
         self.name = name
         self.nodelist = nodelist
         self.is_required = is_required
         self.is_default = is_default
+        self.node_id = node_id or gen_id()
 
     @property
     def active_flags(self) -> List[str]:
@@ -167,7 +169,9 @@ class FillNode(Node, ComponentIdMixin):
         name_fexp: FilterExpression,
         alias_fexp: Optional[FilterExpression] = None,
         is_implicit: bool = False,
+        node_id: Optional[str] = None,
     ):
+        self.node_id = node_id or gen_id()
         self.nodelist = nodelist
         self.name_fexp = name_fexp
         self.alias_fexp = alias_fexp
@@ -214,9 +218,11 @@ class IfSlotFilledConditionBranchNode(_IfSlotFilledBranchNode, ComponentIdMixin)
         slot_name: str,
         nodelist: NodeList,
         is_positive: Union[bool, None] = True,
+        node_id: Optional[str] = None,
     ) -> None:
         self.slot_name = slot_name
         self.is_positive: Optional[bool] = is_positive
+        self.node_id = node_id or gen_id()
         super().__init__(nodelist)
 
     def evaluate(self, context: Context) -> bool:
diff --git a/src/django_components/templatetags/component_tags.py b/src/django_components/templatetags/component_tags.py
index d28621b9..aeb9d729 100644
--- a/src/django_components/templatetags/component_tags.py
+++ b/src/django_components/templatetags/component_tags.py
@@ -146,15 +146,22 @@ def do_slot(parser: Parser, token: Token) -> SlotNode:
             "Order of options is free."
         )
 
+    # Use a unique ID to be able to tie the fill nodes with components and slots
+    # NOTE: MUST be called BEFORE `parser.parse()` to ensure predictable numbering
+    slot_id = gen_id()
+
     nodelist = parser.parse(parse_until=["endslot"])
     parser.delete_first_token()
-    return SlotNode(
+    slot_node = SlotNode(
         slot_name,
         nodelist,
         is_required=is_required,
         is_default=is_default,
+        node_id=slot_id,
     )
 
+    return slot_node
+
 
 @register.tag("fill")
 def do_fill(parser: Parser, token: Token) -> FillNode:
@@ -180,15 +187,23 @@ def do_fill(parser: Parser, token: Token) -> FillNode:
         alias_fexp = FilterExpression(alias, parser)
     else:
         raise TemplateSyntaxError(f"'{tag}' tag takes either 1 or 3 arguments: Received {len(args)}.")
+    
+    # Use a unique ID to be able to tie the fill nodes with components and slots
+    # NOTE: MUST be called BEFORE `parser.parse()` to ensure predictable numbering
+    fill_id = gen_id()
+
     nodelist = parser.parse(parse_until=["endfill"])
     parser.delete_first_token()
 
-    return FillNode(
+    fill_node = FillNode(
         nodelist,
         name_fexp=FilterExpression(tgt_slot_name, tag),
         alias_fexp=alias_fexp,
+        node_id=fill_id,
     )
 
+    return fill_node
+
 
 @register.tag(name="component")
 def do_component(parser: Parser, token: Token) -> ComponentNode:
@@ -208,14 +223,15 @@ def do_component(parser: Parser, token: Token) -> ComponentNode:
     bits = token.split_contents()
     bits, isolated_context = check_for_isolated_context_keyword(bits)
     component_name, context_args, context_kwargs = parse_component_with_args(parser, bits, "component")
+
+    # Use a unique ID to be able to tie the fill nodes with components and slots
+    # NOTE: MUST be called BEFORE `parser.parse()` to ensure predictable numbering
+    component_id = gen_id()
+
     body: NodeList = parser.parse(parse_until=["endcomponent"])
     parser.delete_first_token()
     fill_nodes = parse_slot_fill_nodes_from_component_nodelist(body, ComponentNode)
 
-    # Use a unique ID to be able to tie the fill nodes with this specific component
-    # and its slots
-    component_id = gen_id()
-
     # Tag all fill nodes as children of this particular component instance
     for node in fill_nodes:
         node.component_id = component_id