diff --git a/include/cantera/kinetics/RxnRates.h b/include/cantera/kinetics/RxnRates.h
index abe7ec8ed..1869a239c 100644
--- a/include/cantera/kinetics/RxnRates.h
+++ b/include/cantera/kinetics/RxnRates.h
@@ -452,15 +452,15 @@ public:
 
     //! Constructor directly from coefficient array
     /*
-     *  @param Pmin    Minimum pressure [Pa]
-     *  @param Pmax    Maximum pressure [Pa]
      *  @param Tmin    Minimum temperature [K]
      *  @param Tmax    Maximum temperature [K]
+     *  @param Pmin    Minimum pressure [Pa]
+     *  @param Pmax    Maximum pressure [Pa]
      *  @param coeffs  Coefficient array dimensioned `nT` by `nP` where `nT` and
      *      `nP` are the number of temperatures and pressures used in the fit,
      *      respectively.
      */
-    ChebyshevRate(double Pmin, double Pmax, double Tmin, double Tmax,
+    ChebyshevRate(double Tmin, double Tmax, double Pmin, double Pmax,
                   const Array2D& coeffs);
 
     //! Update concentration-dependent parts of the rate coefficient.
diff --git a/src/kinetics/Reaction.cpp b/src/kinetics/Reaction.cpp
index 997a260f5..8abed3b40 100644
--- a/src/kinetics/Reaction.cpp
+++ b/src/kinetics/Reaction.cpp
@@ -474,10 +474,10 @@ void setupChebyshevReaction(ChebyshevReaction& R, const XML_Node& rxn_node)
             coeffs(t,p) = coeffs_flat[nP*t + p];
         }
     }
-    R.rate = ChebyshevRate(getFloat(rc, "Pmin", "toSI"),
-                           getFloat(rc, "Pmax", "toSI"),
-                           getFloat(rc, "Tmin", "toSI"),
+    R.rate = ChebyshevRate(getFloat(rc, "Tmin", "toSI"),
                            getFloat(rc, "Tmax", "toSI"),
+                           getFloat(rc, "Pmin", "toSI"),
+                           getFloat(rc, "Pmax", "toSI"),
                            coeffs);
     setupReaction(R, rxn_node);
 }
diff --git a/src/kinetics/RxnRates.cpp b/src/kinetics/RxnRates.cpp
index 81f7b4cf9..aa03fd58f 100644
--- a/src/kinetics/RxnRates.cpp
+++ b/src/kinetics/RxnRates.cpp
@@ -265,7 +265,7 @@ ChebyshevRate::ChebyshevRate(const ReactionData& rdata)
     PrDen_ = 1.0 / (logPmax - logPmin);
 }
 
-ChebyshevRate::ChebyshevRate(double Pmin, double Pmax, double Tmin, double Tmax,
+ChebyshevRate::ChebyshevRate(double Tmin, double Tmax, double Pmin, double Pmax,
                              const Array2D& coeffs)
     : Tmin_(Tmin)
     , Tmax_(Tmax)
diff --git a/test/kinetics/kineticsFromScratch.cpp b/test/kinetics/kineticsFromScratch.cpp
index 76bbc0754..e473ea234 100644
--- a/test/kinetics/kineticsFromScratch.cpp
+++ b/test/kinetics/kineticsFromScratch.cpp
@@ -195,7 +195,7 @@ TEST_F(KineticsFromScratch, add_chebyshev_reaction)
     coeffs(2,1) = 2.6889e-01;
     coeffs(2,2) = 9.4806e-02;
     coeffs(2,3) = -7.6385e-03;
-    ChebyshevRate rate(1000.0, 10000000.0, 290, 3000, coeffs);
+    ChebyshevRate rate(290, 3000, 1000.0, 10000000.0, coeffs);
 
     shared_ptr<ChebyshevReaction> R(new ChebyshevReaction(reac, prod, rate));
     kin.addReaction(R);