diff --git a/dlls/mshtml/tests/htmldoc.c b/dlls/mshtml/tests/htmldoc.c
index f543dccef6d..8a36bc1defa 100644
--- a/dlls/mshtml/tests/htmldoc.c
+++ b/dlls/mshtml/tests/htmldoc.c
@@ -4732,7 +4732,7 @@ static void test_editing_mode(BOOL do_load)
     ok(ref == 0, "ref=%d, expected 0\n", ref);
 }
 
-void test_UIActivate(BOOL do_load, BOOL use_ipsex, BOOL use_ipsw)
+static void test_UIActivate(BOOL do_load, BOOL use_ipsex, BOOL use_ipsw)
 {
     IUnknown *unk;
     IOleObject *oleobj;