diff --git a/reactos/base/services/svchost/svchost.c b/reactos/base/services/svchost/svchost.c
index 3390aa666ec..f05955127e4 100644
--- a/reactos/base/services/svchost/svchost.c
+++ b/reactos/base/services/svchost/svchost.c
@@ -142,7 +142,7 @@ BOOL PrepareService(LPCTSTR ServiceName)
 	return TRUE;
 }
 
-VOID FreeServices()
+VOID FreeServices(VOID)
 {
 	while (FirstService)
 	{