diff --git a/main.js b/main.js
index e39241f..5bc0532 100644
--- a/main.js
+++ b/main.js
@@ -117,6 +117,12 @@ function switchInputs(enabled) {
 	document.querySelector("#modulus").disabled = !enabled;
 }
 
+function endOfComputation() {
+	clearTimeout(timeoutId);
+	switchInputs(true);
+	switchButtons(true);
+}
+
 const expr = document.querySelector("#expr");
 let selectionStart = 0;
 let selectionEnd = 0;
@@ -124,17 +130,13 @@ let selectionEnd = 0;
 let timeoutId = null;
 const worker = new Worker("./workers/compute.js");
 worker.addEventListener("message", (message) => {
-	clearTimeout(timeoutId);
 	document.querySelector("#result").value = message.data;
-	switchInputs(true);
-	switchButtons(true);
+	endOfComputation();
 });
 worker.addEventListener("error", (e) => {
 	console.log(e);
-	clearTimeout(timeoutId);
 	document.querySelector("#result").value = e.message;
-	switchInputs(true);
-	switchButtons(true);
+	endOfComputation();
 });
 
 document.querySelector("#expr").addEventListener("focus", setupExprInput);