diff --git a/lib/format.js b/lib/format.js
index ba1de3a1..691db1c2 100644
--- a/lib/format.js
+++ b/lib/format.js
@@ -72,8 +72,8 @@ export const msatsToSatsDecimal = msats => {
   return fixedDecimal(Number(msats) / 1000.0, 3)
 }
 
-export const formatSats = (sats) => numWithUnits(sats, { unitSignular: 'sat', unitPlural: 'sats', abbreviate: false })
-export const formatMsats = (msats) => numWithUnits(msats, { unitSignular: 'msat', unitPlural: 'msats', abbreviate: false })
+export const formatSats = (sats) => numWithUnits(sats, { unitSingular: 'sat', unitPlural: 'sats', abbreviate: false })
+export const formatMsats = (msats) => numWithUnits(msats, { unitSingular: 'msat', unitPlural: 'msats', abbreviate: false })
 
 export const hexToB64 = hexstring => {
   return btoa(hexstring.match(/\w{2}/g).map(function (a) {