diff --git a/requirements.txt b/requirements.txt
index 0bcdf484a4..e339ead1b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ ironic-lib>=2.15.0 # Apache-2.0
 python-swiftclient>=3.2.0 # Apache-2.0
 pytz>=2013.6 # MIT
 stevedore>=1.20.0 # Apache-2.0
-pysendfile>=2.0.0 # MIT
+pysendfile>=2.0.0;sys_platform!='win32' # MIT
 oslo.concurrency>=3.26.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0
 oslo.context>=2.19.2 # Apache-2.0