diff --git a/src/main.rs b/src/main.rs
index aafbbe4..1b4d4fc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -27,7 +27,17 @@ fn ticket_from_str(s: &str) -> Result<Ticket, anyhow::Error> {
         num5.unwrap()?,
     ];
 
-    if r[0] > 90 || r[1] > 90 || r[2] > 90 || r[3] > 90 || r[4] > 90 {
+    if r[0] < 1
+        || r[1] < 1
+        || r[2] < 1
+        || r[3] < 1
+        || r[4] < 1
+        || r[0] > 90
+        || r[1] > 90
+        || r[2] > 90
+        || r[3] > 90
+        || r[4] > 90
+    {
         return Err(anyhow!("lotto number too high"));
     }