diff --git a/src/c-wrapper/internal/c-tools.h b/src/c-wrapper/internal/c-tools.h
index f7d39519a..17ec09ff5 100644
--- a/src/c-wrapper/internal/c-tools.h
+++ b/src/c-wrapper/internal/c-tools.h
@@ -562,7 +562,7 @@ public:
 	static inline bctbx_list_t *getResolvedCListFromCppList (const std::list<CppType> &cppList) {
 		bctbx_list_t *result = nullptr;
 		for (const auto &value : cppList)
-			result = bctbx_list_append(result, belle_sip_object_ref(getCBackPtr(&value)));
+			result = bctbx_list_append(result, getCBackPtr(&value));
 		return result;
 	}