diff --git a/lib/submitButton.js b/lib/submitButton.js
index 4e15ecb..80c33f6 100644
--- a/lib/submitButton.js
+++ b/lib/submitButton.js
@@ -30,7 +30,12 @@ export function SubmitButton({
       if (!!Number(inputValue) && inputValue >= 0) {
         nextStepInput(obj);
       } else if (!!Number(inputValue) && inputValue < 0) {
-        alert("Negative numbers not yet allowed");
+        alert("Suport for negative numbers experimental");
+        nextStepInput({
+          ...obj,
+          inputValue: inputValue,
+          squiggleString: inputValue,
+        });
       } else {
         let potentialSquiggleOutput = await squiggleWrapper(inputValue);
         if (!!Number(potentialSquiggleOutput)) {