diff --git a/packages/inter-protocol/src/clientSupport.js b/packages/inter-protocol/src/clientSupport.js
index 304cf54173fd..314a59313dd9 100644
--- a/packages/inter-protocol/src/clientSupport.js
+++ b/packages/inter-protocol/src/clientSupport.js
@@ -260,7 +260,7 @@ export const makeParseAmount =
   (agoricNames, makeError = msg => RangeError(msg)) =>
   opt => {
     assert.typeof(opt, 'string', 'parseAmount expected string');
-    const m = opt.match(/^(?<value>[\d_]+(\.[\d_]+)?)(?<brand>[A-Z]\w*?)$/);
+    const m = opt.match(/^(?<value>[\d_]+(\.[\d_]+)?)(?<brand>\w*?)$/);
     if (!m || !m.groups) {
       throw makeError(`invalid amount: ${opt}`);
     }