diff --git a/dlls/advapi32/tests/security.c b/dlls/advapi32/tests/security.c
index 1f1b69704a3..cd4624aea79 100644
--- a/dlls/advapi32/tests/security.c
+++ b/dlls/advapi32/tests/security.c
@@ -1931,7 +1931,7 @@ static void test_LookupAccountName(void)
         ok(!lstrcmp(domain, sid_dom), "Expected %s, got %s\n", sid_dom, domain);
     }
     ok(domain_size == domain_save - 1, "Expected %d, got %d\n", domain_save - 1, domain_size);
-    ok(lstrlen(domain) == domain_size, "Expected %d, got %d\n", lstrlen(domain), domain_size);
+    ok(strlen(domain) == domain_size, "Expected %d, got %d\n", lstrlen(domain), domain_size);
     ok(sid_use == SidTypeUser, "Expected SidTypeUser (%d), got %d\n", SidTypeUser, sid_use);
     domain_size = domain_save;
     sid_size = sid_save;
@@ -1949,7 +1949,7 @@ static void test_LookupAccountName(void)
         ok(!lstrcmp(account, "Everyone"), "Expected Everyone, got %s\n", account);
         ok(!lstrcmp(domain, sid_dom), "Expected %s, got %s\n", sid_dom, domain);
         ok(domain_size == 0, "Expected 0, got %d\n", domain_size);
-        ok(lstrlen(domain) == domain_size, "Expected %d, got %d\n", lstrlen(domain), domain_size);
+        ok(strlen(domain) == domain_size, "Expected %d, got %d\n", lstrlen(domain), domain_size);
         ok(sid_use == SidTypeWellKnownGroup, "Expected SidTypeWellKnownGroup (%d), got %d\n", SidTypeWellKnownGroup, sid_use);
         domain_size = domain_save;
     }