diff --git a/Cargo.lock b/Cargo.lock
index f13fbf5..c48b68a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ checksum = "aacfb566035f8cd02f6ec9247c242f3f9904a0b288ea383abcf4e95df6436a34"
 
 [[package]]
 name = "feval"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "evalexpr",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 33b1686..083320e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "feval"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 description = "clt for fast evaluations"
 readme = "README.md"
diff --git a/src/main.rs b/src/main.rs
index e67dfc0..b6ee903 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,10 +11,14 @@ example: feval "math::sin(30 * math::pi / 180)""#);
 
 fn main() {
     let args: Vec<String> = args().collect();
-    if args.len() != 2 {
+    if args.len() > 2 {
         println!("Too many args.");
         help();
         return
+    } else if args.len() < 2 {
+        println!("Too few args.");
+        help();
+        return
     }
     let expr = all(args[1].clone());
     println!("{}", evalexpr::eval(&expr).unwrap())