diff --git a/index.js b/index.js
index f226845..3e2b5dc 100644
--- a/index.js
+++ b/index.js
@@ -16,7 +16,7 @@ export default function parse(str = '', format = 'ms') {
 
   String(str)
     .replace(new RegExp(`(\\d)[${parse.unit.placeholder}${parse.unit.group}](\\d)`, 'g'), '$1$2')  // clean up group separators / placeholders
-    .replace(parse.unit.decimal, '.') // normalize decimal separator
+    .replaceAll(parse.unit.decimal, '.') // normalize decimal separator
     .replace(durationRE, (_, n, units) => {
     // if no units, find next smallest units or fall back to format value
     // eg. 1h30 -> 1h30m
diff --git a/test.js b/test.js
index f846782..ed7c11e 100644
--- a/test.js
+++ b/test.js
@@ -177,5 +177,8 @@ t('locale separators', t => {
 	t.equal(parse('30.000,65 seconds'), 30000650)
 	t.equal(parse('30 000,65 seconds'), 30000650)
 	t.equal(parse('30_000,65 seconds'), 30000650)
+	// every component's decimal separator must be normalized, not just the first
+	t.equal(parse('1,5 s 1,5 s'), 3000)
+	t.equal(parse('2,5h 3,5h'), 21600000)
 	t.end()
 })