diff --git a/icu4c/source/i18n/tzfmt.cpp b/icu4c/source/i18n/tzfmt.cpp
index a1ad9bd1a43..79210ad0e27 100644
--- a/icu4c/source/i18n/tzfmt.cpp
+++ b/icu4c/source/i18n/tzfmt.cpp
@@ -290,6 +290,8 @@ TimeZoneFormat::TimeZoneFormat(const Locale& locale, UErrorCode& status)
         if (len > 0) {
             hourFormats = resStr;
         }
+        ures_close(zoneStringsArray);
+        ures_close(zoneBundle);
     }
 
     if (gmtPattern == NULL) {