diff --git a/ql/cashflows/cashflows.hpp b/ql/cashflows/cashflows.hpp
index 10e8d18272c..5be9a4736e1 100644
--- a/ql/cashflows/cashflows.hpp
+++ b/ql/cashflows/cashflows.hpp
@@ -425,7 +425,10 @@ namespace QuantLib {
                               Real accuracy = 1.0e-10,
                               Size maxIterations = 100,
                               Rate guess = 0.0);
-        //! deprecated implied Z-spread.
+        /*! \deprecated Use the other overload.
+                        Deprecated in version 1.35.
+        */
+        [[deprecated("Use the other overload")]]
         static Spread zSpread(const Leg& leg,
                               const ext::shared_ptr<YieldTermStructure>& d,
                               Real npv,
diff --git a/ql/pricingengines/bond/bondfunctions.cpp b/ql/pricingengines/bond/bondfunctions.cpp
index 3a11bc1597f..ef4da471783 100644
--- a/ql/pricingengines/bond/bondfunctions.cpp
+++ b/ql/pricingengines/bond/bondfunctions.cpp
@@ -578,8 +578,8 @@ namespace QuantLib {
         dirtyPrice /= 100.0 / bond.notional(settlement);
 
         return CashFlows::zSpread(bond.cashflows(),
-                                  d,
                                   dirtyPrice,
+                                  d,
                                   dayCounter, compounding, frequency,
                                   false, settlement, settlement,
                                   accuracy, maxIterations, guess);