diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index 35f2c4a50a0..4b81be2b799 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -735,7 +735,7 @@ def add_ui(db):
     # Also set list of reinstalled features to "ALL"
     c.event("[REINSTALL]", "ALL", 'MaintenanceForm_Action="Repair"', 5)
     c.event("[Progress1]", "Repairing", 'MaintenanceForm_Action="Repair"', 6)
-    c.event("[Progress2]", "repaires", 'MaintenanceForm_Action="Repair"', 7)
+    c.event("[Progress2]", "repairs", 'MaintenanceForm_Action="Repair"', 7)
     c.event("Reinstall", "ALL", 'MaintenanceForm_Action="Repair"', 8)
 
     # Uninstall: Change progress to "Remove", then invoke uninstall
diff --git a/Tools/msi/uisample.py b/Tools/msi/uisample.py
index 39e0a7fe598..d66c3cd6343 100644
--- a/Tools/msi/uisample.py
+++ b/Tools/msi/uisample.py
@@ -543,7 +543,7 @@ ControlEvent = [
 (u'MaintenanceTypeDlg', u'RepairButton', u'NewDialog', u'VerifyRepairDlg', u'1', 4),
 (u'MaintenanceTypeDlg', u'RepairButton', u'[InstallMode]', u'Repair', u'1', 1),
 (u'MaintenanceTypeDlg', u'RepairButton', u'[Progress1]', u'Repairing', u'1', 2),
-(u'MaintenanceTypeDlg', u'RepairButton', u'[Progress2]', u'repaires', u'1', 3),
+(u'MaintenanceTypeDlg', u'RepairButton', u'[Progress2]', u'repairs', u'1', 3),
 (u'MaintenanceWelcomeDlg', u'Cancel', u'SpawnDialog', u'CancelDlg', u'1', None),
 (u'MaintenanceWelcomeDlg', u'Next', u'NewDialog', u'MaintenanceTypeDlg', u'1', 2),
 (u'MaintenanceWelcomeDlg', u'Next', u'SpawnWaitDialog', u'WaitForCostingDlg', u'CostingComplete = 1', 1),