diff --git a/modules/llama_cpp_server.py b/modules/llama_cpp_server.py
index 39aaf421..1965a170 100644
--- a/modules/llama_cpp_server.py
+++ b/modules/llama_cpp_server.py
@@ -282,7 +282,7 @@ class LlamaServer:
 
         def filter_stderr():
             for line in iter(self.process.stderr.readline, ''):
-                if not line.startswith(('srv ', 'slot ')) and not 'log_server_r: request: GET /health' in line:
+                if not line.startswith(('srv ', 'slot ')) and 'log_server_r: request: GET /health' not in line:
                     sys.stderr.write(line)
                     sys.stderr.flush()