diff --git a/rmgpy/molecule/group.py b/rmgpy/molecule/group.py
index b4d8d754901..22771d1af47 100644
--- a/rmgpy/molecule/group.py
+++ b/rmgpy/molecule/group.py
@@ -955,7 +955,7 @@ def is_reaction_bond(self, wildcards=False):
             else:
                 return False
         else:
-            return abs(self.order[0]-0.05) <= 1e-9 and len(self.order) == 1
+            return abs(self.order[0] - 0.05) <= 1e-9 and len(self.order) == 1
 
     def is_benzene(self, wildcards=False):
         """