1 files changed, 4 insertions, 2 deletions

diff --git a/src/main.rs b/src/main.rs
index 5b7fdb4..75c33bb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -193,8 +193,10 @@ fn parse_arguments() -> Configuration {
 }
 
 pub fn eval_math_expression(input: &str, prev_ans: Option<f64>) -> Result<f64, CalcError> {
-    let input = input.trim();
-    let input = input.replace(" ", "");
+    let input = input.trim().replace(" ", "");
+    if input == "help" {
+        return Err(CalcError::Help);
+    }
     if input.is_empty() {
         return Ok(0.);
     }