diff --git a/src/plugin/customParseFormat/index.js b/src/plugin/customParseFormat/index.js
index 0bc8ef342..ad639beb1 100644
--- a/src/plugin/customParseFormat/index.js
+++ b/src/plugin/customParseFormat/index.js
@@ -129,7 +129,7 @@ const parseFormattedInput = (input, format) => {
     }
     const now = new Date()
     return new Date(
-      year || now.getFullYear(), month - 1 || now.getMonth(), day || now.getDate(),
+      year || now.getFullYear(), month > 0 ? month - 1 : now.getMonth(), day || now.getDate(),
       hours || 0, minutes || 0, seconds || 0, milliseconds || 0
     )
   } catch (e) {
diff --git a/test/plugin/customParseFormat.test.js b/test/plugin/customParseFormat.test.js
index 835df9674..e26cbea30 100644
--- a/test/plugin/customParseFormat.test.js
+++ b/test/plugin/customParseFormat.test.js
@@ -24,6 +24,12 @@ it('parse padded string', () => {
   expect(dayjs(input, format).valueOf()).toBe(moment(input, format).valueOf())
 })
 
+it('parse string January (getMonth() = 0)', () => {
+  const input = '01/01/2019'
+  const format = 'DD/MM/YYYY'
+  expect(dayjs(input, format).valueOf()).toBe(moment(input, format).valueOf())
+})
+
 it('parse unpadded string', () => {
   const input = '2.5.18 1:2:3.4 PM -0100'
   const format = 'D.M.YY H:m:s.S A ZZ'