diff --git a/lib/mutant/node_helpers.rb b/lib/mutant/node_helpers.rb
index 183f0afb..63043297 100644
--- a/lib/mutant/node_helpers.rb
+++ b/lib/mutant/node_helpers.rb
@@ -15,9 +15,9 @@ module Mutant
     end
     module_function :s
 
-    NAN               = s(:send, s(:float,  0.0), :/, s(:args, s(:float, 0.0)))
-    NEGATIVE_INFINITY = s(:send, s(:float, -1.0), :/, s(:args, s(:float, 0.0)))
-    INFINITY          = s(:send, s(:float,  1.0), :/, s(:args, s(:float, 0.0)))
+    NAN               = s(:begin, s(:send, s(:float,  0.0), :/, s(:args, s(:float, 0.0))))
+    NEGATIVE_INFINITY = s(:begin, s(:send, s(:float, -1.0), :/, s(:args, s(:float, 0.0))))
+    INFINITY          = s(:begin, s(:send, s(:float,  1.0), :/, s(:args, s(:float, 0.0))))
     NEW_OBJECT        = s(:send, s(:const, s(:cbase), :Object), :new)
 
     RAISE             = s(:send, nil, :raise)
diff --git a/spec/unit/mutant/mutator/node/literal/range_spec.rb b/spec/unit/mutant/mutator/node/literal/range_spec.rb
index c89f9b41..5fc40037 100644
--- a/spec/unit/mutant/mutator/node/literal/range_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/range_spec.rb
@@ -8,10 +8,10 @@ describe Mutant::Mutator::Node::Literal, 'range' do
       mutations = []
       mutations << 'nil'
       mutations << '1...100'
-      mutations << '(0.0/0.0)..100'
+      mutations << '(0.0 / 0.0)..100'
       #mutations << [:dot2, [:negate, [:call, [:lit, 1.0], :/, [:arglist, [:lit, 0.0]]]], [:lit, 100]]
-      mutations << '1..(1.0/0.0)'
-      mutations << '1..(0.0/0.0)'
+      mutations << '1..(1.0 / 0.0)'
+      mutations << '1..(0.0 / 0.0)'
     end
 
     it_should_behave_like 'a mutator'
@@ -24,10 +24,10 @@ describe Mutant::Mutator::Node::Literal, 'range' do
       mutations = []
       mutations << 'nil'
       mutations << '1..100'
-      mutations << '(0.0/0.0)...100'
+      mutations << '(0.0 / 0.0)...100'
       #mutations << [:dot3, [:negate, [:call, [:lit, 1.0], :/, [:arglist, [:lit, 0.0]]]], [:lit, 100]]
-      mutations << '1...(1.0/0.0)'
-      mutations << '1...(0.0/0.0)'
+      mutations << '1...(1.0 / 0.0)'
+      mutations << '1...(0.0 / 0.0)'
     end
 
     it_should_behave_like 'a mutator'