diff --git a/zerver/openapi/markdown_extension.py b/zerver/openapi/markdown_extension.py
index 63fe92339e..4f6ab36874 100644
--- a/zerver/openapi/markdown_extension.py
+++ b/zerver/openapi/markdown_extension.py
@@ -31,7 +31,7 @@ from zerver.openapi.openapi import (
     openapi_spec,
 )
 
-API_ENDPOINT_NAME = r"/[a-z_/-{}]+:[a-z]+"
+API_ENDPOINT_NAME = r"/[a-z_\-/-{}]+:[a-z]+"
 API_LANGUAGE = r"\w+"
 API_KEY_TYPE = r"fixture|example"
 MACRO_REGEXP = re.compile(