diff --git a/mmgen_node_tools/PeerBlocks.py b/mmgen_node_tools/PeerBlocks.py
index 4a4a940..899f962 100755
--- a/mmgen_node_tools/PeerBlocks.py
+++ b/mmgen_node_tools/PeerBlocks.py
@@ -61,7 +61,7 @@ class Display(PollDisplay):
 		return await rpc.call('disconnectnode',addr)
 
 	def get_input(self):
-		s = get_char(immed_chars='q0123456789',prehold_protect=False,num_chars=1)
+		s = get_char(immed_chars='q0123456789',prehold_protect=False,num_bytes=1)
 		if not is_int(s):
 			return s
 		with self.info_lock:
diff --git a/mmgen_node_tools/PollDisplay.py b/mmgen_node_tools/PollDisplay.py
index 06b7d7f..bff4683 100755
--- a/mmgen_node_tools/PollDisplay.py
+++ b/mmgen_node_tools/PollDisplay.py
@@ -27,7 +27,7 @@ class PollDisplay():
 		self.display_kill_flag = threading.Event()
 
 	def get_input(self):
-		return get_char(immed_chars='q',prehold_protect=False,num_chars=1)
+		return get_char(immed_chars='q',prehold_protect=False,num_bytes=1)
 
 	async def process_input(self,rpc):
 		return True
diff --git a/mmgen_node_tools/data/version b/mmgen_node_tools/data/version
index 4913611..102a890 100644
--- a/mmgen_node_tools/data/version
+++ b/mmgen_node_tools/data/version
@@ -1 +1 @@
-3.1.dev12
+3.1.dev13
diff --git a/setup.cfg b/setup.cfg
index 5c13b13..e9a2587 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,7 +23,7 @@ python_requires = >=3.7
 include_package_data = True
 
 install_requires =
-	mmgen>=13.3.dev13
+	mmgen>=13.3.dev14
 
 packages =
 	mmgen_node_tools