diff --git a/dlls/netapi32/netapi32.c b/dlls/netapi32/netapi32.c
index d58335381e6..a1cef9fa116 100644
--- a/dlls/netapi32/netapi32.c
+++ b/dlls/netapi32/netapi32.c
@@ -24,7 +24,7 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(netbios);
 
-HMODULE NETAPI32_hModule = 0;
+static HMODULE NETAPI32_hModule;
 
 BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 {