diff --git a/dlls/oleaut32/tests/vartest.c b/dlls/oleaut32/tests/vartest.c
index 24ef171..ef1ecf2 100644
--- a/dlls/oleaut32/tests/vartest.c
+++ b/dlls/oleaut32/tests/vartest.c
@@ -102,19 +102,25 @@ static void init(void)
 {
     BSTR bstr;
     HRESULT res;
+    CHAR localbool[32];
+    CHAR sz12_trueA[32], sz12_falseA[32];
 
     res = VarBstrFromBool(VARIANT_TRUE, LANG_USER_DEFAULT, VAR_LOCALBOOL, &bstr);
-    ok(SUCCEEDED(res) && (lstrlenW(bstr) > 0),
+    WideCharToMultiByte(CP_ACP, 0, bstr, -1, localbool, sizeof(localbool), NULL, NULL);
+    ok(SUCCEEDED(res) && (lstrlenA(localbool) > 0),
         "Expected localized string for 'True'\n");
-    lstrcpyW(sz12_true, sz12);
-    if (bstr) lstrcatW(sz12_true, bstr);
+    lstrcpyA(sz12_trueA, "12");
+    if (bstr) lstrcatA(sz12_trueA, localbool);
+    MultiByteToWideChar(CP_ACP, 0, sz12_trueA, -1, sz12_true, sizeof(sz12_true)/sizeof(WCHAR));
     SysFreeString(bstr);
 
     res = VarBstrFromBool(VARIANT_FALSE, LANG_USER_DEFAULT, VAR_LOCALBOOL, &bstr);
-    ok(SUCCEEDED(res) && (lstrlenW(bstr) > 0),
+    WideCharToMultiByte(CP_ACP, 0, bstr, -1, localbool, sizeof(localbool), NULL, NULL);
+    ok(SUCCEEDED(res) && (lstrlenA(localbool) > 0),
         "Expected localized string for 'False'\n");
-    lstrcpyW(sz12_false, sz12);
-    if (bstr) lstrcatW(sz12_false, bstr);
+    lstrcpyA(sz12_falseA, "12");
+    if (bstr) lstrcatA(sz12_falseA, localbool);
+    MultiByteToWideChar(CP_ACP, 0, sz12_falseA, -1, sz12_false, sizeof(sz12_false)/sizeof(WCHAR));
     SysFreeString(bstr);
 
     hOleaut32 = GetModuleHandle("oleaut32.dll");