diff --git a/src/lib/icu/Converter.cxx b/src/lib/icu/Converter.cxx
index 47431866c..53d5669b5 100644
--- a/src/lib/icu/Converter.cxx
+++ b/src/lib/icu/Converter.cxx
@@ -38,7 +38,7 @@
 
 #ifdef HAVE_ICU
 
-IcuConverter::~IcuConverter()
+IcuConverter::~IcuConverter() noexcept
 {
 	ucnv_close(converter);
 }
diff --git a/src/lib/icu/Converter.hxx b/src/lib/icu/Converter.hxx
index e98bc1142..ad9fbbd3c 100644
--- a/src/lib/icu/Converter.hxx
+++ b/src/lib/icu/Converter.hxx
@@ -65,9 +65,9 @@ class IcuConverter {
 
 public:
 #ifdef HAVE_ICU
-	~IcuConverter();
+	~IcuConverter() noexcept;
 #elif defined(HAVE_ICONV)
-	~IcuConverter() {
+	~IcuConverter() noexcept {
 		iconv_close(to_utf8);
 		iconv_close(from_utf8);
 	}