diff --git a/lib/constants.py b/lib/constants.py
index 335e73b099b5e1f3825c9371f5efffa1b1b24b7d..1950ac55fc5e9081646737aa95b2d996db7668ea 100644
--- a/lib/constants.py
+++ b/lib/constants.py
@@ -98,7 +98,7 @@ DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 MASTER_SOCKET = RUN_GANETI_DIR + "/master.sock"
 
 # PID files
-MASTERD_PID = "ganeti-master"
+MASTERD_PID = "ganeti-masterd"
 NODED_PID = "ganeti-noded"
 RAPI_PID = "ganeti-rapi"