diff --git a/interfaces/cython/cantera/ck2cti.py b/interfaces/cython/cantera/ck2cti.py
index 10bb004e9..214780ce0 100644
--- a/interfaces/cython/cantera/ck2cti.py
+++ b/interfaces/cython/cantera/ck2cti.py
@@ -224,7 +224,10 @@ class MultiNASA(ThermoModel):
         lines = []
         for i,p in enumerate(self.polynomials):
             if i == 0:
-                lines.append('({0}'.format(p.to_cti(indent+1)))
+                if len(self.polynomials) == 1:
+                    lines.append('({0})'.format(p.to_cti(indent+1)))
+                else:
+                    lines.append('({0}'.format(p.to_cti(indent+1)))
             elif i != len(self.polynomials)-1:
                 lines.append(prefix + ' {0}'.format(p.to_cti(indent+1)))
             else:
diff --git a/test/data/nasa9-test-therm.dat b/test/data/nasa9-test-therm.dat
index 674bfdafc..b1ca741e4 100644
--- a/test/data/nasa9-test-therm.dat
+++ b/test/data/nasa9-test-therm.dat
@@ -20,16 +20,8 @@ ALCL3             Gurvich,1996a pt1 p173 pt2 p134.
 -1.378630916D+05-5.579207290D+01 1.004190387D+01-1.682165339D-05 3.724664660D-09
 -4.275526780D-13 1.982341329D-17                -7.343407470D+04-2.045130429D+01
 AR                Ref-Elm. Moore,1971. Gordon,1999..                                
- 3 g 3/98 Ar  1.00    0.00    0.00    0.00    0.00 0   39.9480000          0.000
+ 1 g 3/98 Ar  1.00    0.00    0.00    0.00    0.00 0   39.9480000          0.000
     200.000   1000.0007 -2.0 -1.0  0.0  1.0  2.0  3.0  4.0  0.0         6197.428
  0.000000000D+00 0.000000000D+00 2.500000000D+00 0.000000000D+00 0.000000000D+00
  0.000000000D+00 0.000000000D+00                -7.453750000D+02 4.379674910D+00
-   1000.000   6000.0007 -2.0 -1.0  0.0  1.0  2.0  3.0  4.0  0.0         6197.428
- 2.010538475D+01-5.992661070D-02 2.500069401D+00-3.992141160D-08 1.205272140D-11
--1.819015576D-15 1.078576636D-19                -7.449939610D+02 4.379180110D+00
-   6000.000  20000.0007 -2.0 -1.0  0.0  1.0  2.0  3.0  4.0  0.0         6197.428
--9.951265080D+08 6.458887260D+05-1.675894697D+02 2.319933363D-02-1.721080911D-06
- 6.531938460D-11-9.740147729D-16                -5.078300340D+06 1.465298484D+03
 END
-
-
diff --git a/test/data/nasa9-test.xml b/test/data/nasa9-test.xml
index d18ed4d62..d27152a45 100644
--- a/test/data/nasa9-test.xml
+++ b/test/data/nasa9-test.xml
@@ -4,8 +4,8 @@
 
   <!-- phase sample     -->
   <phase dim="3" id="sample">
-    <elementArray datasrc="elements.xml">O  H  Al  Cl  E  Ar </elementArray>
-    <speciesArray datasrc="#species_data">ALCL3  e-  AR </speciesArray>
+    <elementArray datasrc="elements.xml">O  H  Al  Cl  E  Ar</elementArray>
+    <speciesArray datasrc="#species_data">ALCL3  e-  AR</speciesArray>
     <reactionArray datasrc="#reaction_data"/>
     <state>
       <temperature units="K">300.0</temperature>
@@ -77,18 +77,6 @@
              0.000000000E+00,   0.000000000E+00,   0.000000000E+00,  -7.453750000E+02,
              4.379674910E+00</floatArray>
         </NASA9>
-        <NASA9 Tmax="6000.0" Tmin="1000.0" P0="100000.0">
-           <floatArray name="coeffs" size="9">
-             2.010538475E+01,  -5.992661070E-02,   2.500069401E+00,  -3.992141160E-08, 
-             1.205272140E-11,  -1.819015576E-15,   1.078576636E-19,  -7.449939610E+02,
-             4.379180110E+00</floatArray>
-        </NASA9>
-        <NASA9 Tmax="20000.0" Tmin="6000.0" P0="100000.0">
-           <floatArray name="coeffs" size="9">
-             -9.951265080E+08,   6.458887260E+05,  -1.675894697E+02,   2.319933363E-02, 
-             -1.721080911E-06,   6.531938460E-11,  -9.740147729E-16,  -5.078300340E+06,
-             1.465298484E+03</floatArray>
-        </NASA9>
       </thermo>
     </species>
   </speciesData>