diff --git a/lib/dllinit.c b/lib/dllinit.c
index 5d2da2c9a9bcef5a4ec0df3e1a6b77792b6b052c..0accb1d646703f3e6c149b0512b727e87a03544e 100644
--- a/lib/dllinit.c
+++ b/lib/dllinit.c
@@ -64,6 +64,9 @@ DllMain (
 	 DWORD reason /* Reason this function is being called. */ ,
 	 LPVOID reserved /* Not used. */ )
 {
+  /* prevent compiler warnings */
+  (void) hInst;
+  (void) reserved;
 
   switch (reason)
     {