diff --git a/spec/eeeval_spec.cr b/spec/eeeval_spec.cr
index 1e73465..38729a2 100644
--- a/spec/eeeval_spec.cr
+++ b/spec/eeeval_spec.cr
@@ -114,8 +114,8 @@ describe EEEval::CalcParser do
   describe "#evaluate", tags: "sci_notation" do
     it "Evaluate expression with minus/plus sign" do
       expression = "1+4.006529739295107e-5"
-      expression = EEEval::CalcParser.evaluate(expression)
-      expression.should eq(1.0000400652973929)
+      result = EEEval::CalcParser.evaluate(expression)
+      result.should eq(1.0000400652973929)
     end
   end
 
diff --git a/src/eeeval.cr b/src/eeeval.cr
index 4d4a6ff..6a41d88 100644
--- a/src/eeeval.cr
+++ b/src/eeeval.cr
@@ -61,7 +61,7 @@ module EEEval
       unless (expression.to_f?)
         evaluate_rpn(infix_to_rpn expression).value
       else
-        convert_scinot(expression)
+        expression
       end
     end