diff --git a/lib/oga/xpath/evaluator.rb b/lib/oga/xpath/evaluator.rb
index 33a7aa2..28b8204 100644
--- a/lib/oga/xpath/evaluator.rb
+++ b/lib/oga/xpath/evaluator.rb
@@ -967,7 +967,7 @@ module Oga
       # @return [Float]
       #
       def on_int(ast_node, context)
-        return ast_node.children[0]
+        return ast_node.children[0].to_f
       end
 
       ##
diff --git a/spec/oga/xpath/evaluator/calls/string_spec.rb b/spec/oga/xpath/evaluator/calls/string_spec.rb
index c09e310..b45b543 100644
--- a/spec/oga/xpath/evaluator/calls/string_spec.rb
+++ b/spec/oga/xpath/evaluator/calls/string_spec.rb
@@ -37,7 +37,7 @@ describe Oga::XPath::Evaluator do
       end
 
       example 'convert an integer to a string' do
-        @evaluator.evaluate('string(10)').should == '10'
+        @evaluator.evaluate('string(10)').should == '10.0'
       end
 
       example 'convert a float to a string' do
diff --git a/spec/oga/xpath/evaluator/types/int_spec.rb b/spec/oga/xpath/evaluator/types/int_spec.rb
index e2f01ad..7321f2f 100644
--- a/spec/oga/xpath/evaluator/types/int_spec.rb
+++ b/spec/oga/xpath/evaluator/types/int_spec.rb
@@ -12,8 +12,8 @@ describe Oga::XPath::Evaluator do
       @number.should == 1
     end
 
-    example 'return integers as Fixnums' do
-      @number.is_a?(Fixnum).should == true
+    example 'return integers as floats' do
+      @number.is_a?(Float).should == true
     end
   end
 end