diff --git a/htmlcc/emitter/__init__.py b/htmlcc/emitter/__init__.py
index 6db4364..3a16a25 100644
--- a/htmlcc/emitter/__init__.py
+++ b/htmlcc/emitter/__init__.py
@@ -58,7 +58,12 @@ class Emitter:
 	def start_block(self, block_name: str) -> None:
 		"""Called at {% block ... %}"""
 		
-		self.emit('void ' + block_name + '(void) {')
+		if block_name.endswith(')'):
+			# Block contains arguments
+			self.emit('void ' + block_name + ' {')
+		else:
+			# Void arguments
+			self.emit('void ' + block_name + '(void) {')
 	
 	def end_block(self) -> None:
 		"""Called at {% endblock %}"""
@@ -68,7 +73,12 @@ class Emitter:
 	def start_page(self, page_name: str) -> None:
 		"""Called at {% page ... %}"""
 		
-		self.emit('void ' + page_name + '(void) {')
+		if page_name.endswith(')'):
+			# Page contains arguments
+			self.emit('void ' + page_name + ' {')
+		else:
+			# Void arguments
+			self.emit('void ' + page_name + '(void) {')
 	
 	def end_page(self) -> None:
 		"""Called at {% endpage %}"""