diff --git a/lang/qt/tests/t-support.h b/lang/qt/tests/t-support.h
index 2630b7d4..e3f0e781 100644
--- a/lang/qt/tests/t-support.h
+++ b/lang/qt/tests/t-support.h
@@ -34,6 +34,8 @@
 #include "interfaces/passphraseprovider.h"
 #include <QObject>
 
+#include <gpg-error.h>
+
 namespace GpgME
 {
 class TestPassphraseProvider : public PassphraseProvider
@@ -42,7 +44,9 @@ public:
     char *getPassphrase(const char * /*useridHint*/, const char * /*description*/,
                         bool /*previousWasBad*/, bool &/*canceled*/) Q_DECL_OVERRIDE
     {
-        return qstrdup("abc");
+        char *ret;
+        gpgrt_asprintf(&ret, "abc");
+        return ret;
     }
 };
 } // namespace GpgME