diff --git a/icu4c/source/i18n/unicode/numberformatter.h b/icu4c/source/i18n/unicode/numberformatter.h
index 6d48f18ab5..42d4687ed3 100644
--- a/icu4c/source/i18n/unicode/numberformatter.h
+++ b/icu4c/source/i18n/unicode/numberformatter.h
@@ -2600,7 +2600,7 @@ StringClass FormattedNumber::toDecimalNumber(UErrorCode& status) const {
     StringByteSink<StringClass> sink(&result);
     toDecimalNumber(sink, status);
     return result;
-};
+}
 #endif // U_HIDE_DRAFT_API
 
 /**