diff --git a/server.py b/server.py
index 6d0b49c9..4d411ea6 100644
--- a/server.py
+++ b/server.py
@@ -733,7 +733,7 @@ def tokenize_dialogue(dialogue, name1, name2):
     dialogue = re.sub('<start>', '', dialogue)
     dialogue = re.sub('(\n|^)[Aa]non:', '\\1You:', dialogue)
     dialogue = re.sub('(\n|^)\[CHARACTER\]:', f'\\g<1>{name2}:', dialogue)
-    idx = [m.start() for m in re.finditer(f"(^|\n)({name1}|{name2}):", dialogue)]
+    idx = [m.start() for m in re.finditer(f"(^|\n)({re.escape(name1)}|{re.escape(name2)}):", dialogue)]
     if len(idx) == 0:
         return _history