diff --git a/interfaces/cython/cantera/test/test_convert.py b/interfaces/cython/cantera/test/test_convert.py
index fc5fbb579..c8b342ebd 100644
--- a/interfaces/cython/cantera/test/test_convert.py
+++ b/interfaces/cython/cantera/test/test_convert.py
@@ -151,7 +151,7 @@ class chemkinConverterTest(utilities.CanteraTest):
         self.assertEqual(gas.species_name(5), 'eq=uals')
         self.assertEqual(gas.species_name(6), 'plus')
 
-        self.assertEqual(gas.n_reactions, 7)
+        self.assertEqual(gas.n_reactions, 10)
         nu = gas.product_stoich_coeffs() - gas.reactant_stoich_coeffs()
         self.assertEqual(list(nu[:,0]), [-1, -1, 0, 2, 0, 0, 0])
         self.assertEqual(list(nu[:,1]), [-2, 3, 0, -1, 0, 0, 0])
diff --git a/test/data/species-names.inp b/test/data/species-names.inp
index 10a30ad64..8c0ff5d6c 100644
--- a/test/data/species-names.inp
+++ b/test/data/species-names.inp
@@ -45,5 +45,11 @@ plus+ + (Parens) = 2plus+          9.999e9   9.9   999.9
 plus + plus+ = 2 (Parens)          9.999e9   9.9   999.9
 plus+ eq=uals = plus++(Parens)     9.999e9   9.9   999.9
 co:lons: + eq=uals = 2 (Parens)     9.999e9   9.9   999.9
+plus+ (+plus) = eq=uals  (+plus)     9.999e9   9.9   999.9
+LOW / 8.888e8   8.8   888.8 /
+plus+ (+(Parens)) = eq=uals  (+(Parens))     9.999e9   9.9   999.9
+LOW / 8.888e8   8.8   888.8 /
+plus+ (+plus+) = eq=uals  (+plus+)     9.999e9   9.9   999.9
+LOW / 8.888e8   8.8   888.8 /
 
 end