diff --git a/test/source/bootstrapfixture.cxx b/test/source/bootstrapfixture.cxx
index 5473c2dbbb67..d166dae36384 100644
--- a/test/source/bootstrapfixture.cxx
+++ b/test/source/bootstrapfixture.cxx
@@ -164,7 +164,9 @@ void test::BootstrapFixture::validate(const OUString& rPath, test::ValidationFor
     OUString aCommand = aValidator + rPath + " > " + aOutputFile;
 
     int returnValue = system(OUStringToOString(aCommand, RTL_TEXTENCODING_UTF8).getStr());
-    (void)returnValue;
+    CPPUNIT_ASSERT_EQUAL_MESSAGE(
+        OUStringToOString(aCommand, RTL_TEXTENCODING_UTF8).getStr(), 0,
+        returnValue);
 
     OString aContentString = loadFile(aOutput.GetURL());
     OUString aContentOUString = OStringToOUString(aContentString, RTL_TEXTENCODING_UTF8);