From b3708cdab50542fdc7acd7524d583b177d41cf4b Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Mon, 17 Jun 2013 14:20:30 +0000
Subject: [PATCH] [Kinetics] Allow reactions with A = 0.0

---
 src/kinetics/importKinetics.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/kinetics/importKinetics.cpp b/src/kinetics/importKinetics.cpp
index 104b7a293..1d20f6a6e 100644
--- a/src/kinetics/importKinetics.cpp
+++ b/src/kinetics/importKinetics.cpp
@@ -541,9 +541,9 @@ void getRateCoefficient(const XML_Node& kf, Kinetics& kin,
                                           kin.thermo(kin.surfacePhaseIndex()), rdata);
                 }
 
-                if (coeff[0] <= 0.0 && !rules.allowNegativeA) {
+                if (coeff[0] < 0.0 && !rules.allowNegativeA) {
                     throw CanteraError("getRateCoefficient",
-                                       "negative or zero A coefficient for reaction "+int2str(rdata.number));
+                                       "negative A coefficient for reaction "+int2str(rdata.number));
                 }
             } else if (nm == "Arrhenius_ExchangeCurrentDensity") {
                 vector_fp coeff(3);