diff --git a/dlls/netapi32/netapi32.c b/dlls/netapi32/netapi32.c
index a24320c2d3d..a5f1c03e474 100644
--- a/dlls/netapi32/netapi32.c
+++ b/dlls/netapi32/netapi32.c
@@ -33,17 +33,14 @@ BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 
     switch (fdwReason) {
         case DLL_PROCESS_ATTACH:
-        {
             DisableThreadLibraryCalls(hinstDLL);
             NetBIOSInit();
             NetBTInit();
             break;
-        }
         case DLL_PROCESS_DETACH:
-        {
+            if (lpvReserved) break;
             NetBIOSShutdown();
             break;
-        }
     }
 
     return TRUE;