diff --git a/src/client/Client.hxx b/src/client/Client.hxx
index 74a423149..8f55c43c4 100644
--- a/src/client/Client.hxx
+++ b/src/client/Client.hxx
@@ -124,12 +124,12 @@ public:
 	void Close() noexcept;
 	void SetExpired() noexcept;
 
-	bool Write(const void *data, size_t length);
+	bool Write(const void *data, size_t length) noexcept;
 
 	/**
 	 * Write a null-terminated string.
 	 */
-	bool Write(const char *data);
+	bool Write(const char *data) noexcept;
 
 	/**
 	 * returns the uid of the client process, or a negative value
diff --git a/src/client/Write.cxx b/src/client/Write.cxx
index 9bc3ec0c4..32ff0a240 100644
--- a/src/client/Write.cxx
+++ b/src/client/Write.cxx
@@ -22,14 +22,14 @@
 #include <string.h>
 
 bool
-Client::Write(const void *data, size_t length)
+Client::Write(const void *data, size_t length) noexcept
 {
 	/* if the client is going to be closed, do nothing */
 	return !IsExpired() && FullyBufferedSocket::Write(data, length);
 }
 
 bool
-Client::Write(const char *data)
+Client::Write(const char *data) noexcept
 {
 	return Write(data, strlen(data));
 }