diff --git a/.changeset/hot-lies-happen.md b/.changeset/hot-lies-happen.md
new file mode 100644
index 00000000..449a3d25
--- /dev/null
+++ b/.changeset/hot-lies-happen.md
@@ -0,0 +1,5 @@
+---
+"@caravan/bitcoin": minor
+---
+
+Fixed bug with detecting odd length string
diff --git a/packages/caravan-bitcoin/src/utils.ts b/packages/caravan-bitcoin/src/utils.ts
index c80fb016..e7164839 100644
--- a/packages/caravan-bitcoin/src/utils.ts
+++ b/packages/caravan-bitcoin/src/utils.ts
@@ -46,7 +46,7 @@ export function validBase64(inputString: string) {
  *   considered invalid (because of the` `x`).
  */
 export function validateHex(inputString: string) {
-  if (inputString.length % 2) {
+  if (inputString.length % 2 !== 0) {
     return "Invalid hex: odd-length string.";
   }
   if (!VALID_HEX_REGEX.test(inputString)) {