diff --git a/src/util/StringBuffer.hxx b/src/util/StringBuffer.hxx
index e7957757f..fdb250287 100644
--- a/src/util/StringBuffer.hxx
+++ b/src/util/StringBuffer.hxx
@@ -51,6 +51,7 @@ protected:
 	Array the_data;
 
 public:
+	using iterator = typename Array::iterator;
 	using const_iterator = typename Array::const_iterator;
 
 	static constexpr size_type capacity() noexcept {
@@ -91,6 +92,14 @@ public:
 		return the_data[i];
 	}
 
+	constexpr iterator begin() noexcept {
+		return the_data.begin();
+	}
+
+	constexpr iterator end() noexcept {
+		return the_data.end();
+	}
+
 	constexpr const_iterator begin() const noexcept {
 		return the_data.begin();
 	}