diff --git a/include/inspsocket.h b/include/inspsocket.h
index a1ffd0d39..d5d6d4454 100644
--- a/include/inspsocket.h
+++ b/include/inspsocket.h
@@ -338,12 +338,6 @@ class CoreExport StreamSocket : public EventHandler
 	/** Send the given data out the socket, either now or when writes unblock
 	 */
 	void WriteData(const std::string& data);
-	/** Convenience function: read a line from the socket
-	 * @param line The line read
-	 * @param delim The line delimiter
-	 * @return true if a line was read
-	 */
-	bool GetNextLine(std::string& line, char delim = '\n');
 
 	/** Retrieves the current size of the send queue. */
 	size_t GetSendQSize() const;
diff --git a/src/inspsocket.cpp b/src/inspsocket.cpp
index 71fdbeb2b..f0f804fff 100644
--- a/src/inspsocket.cpp
+++ b/src/inspsocket.cpp
@@ -137,16 +137,6 @@ CullResult StreamSocket::cull()
 	return EventHandler::cull();
 }
 
-bool StreamSocket::GetNextLine(std::string& line, char delim)
-{
-	std::string::size_type i = recvq.find(delim);
-	if (i == std::string::npos)
-		return false;
-	line.assign(recvq, 0, i);
-	recvq.erase(0, i + 1);
-	return true;
-}
-
 int StreamSocket::HookChainRead(IOHook* hook, std::string& rq)
 {
 	if (!hook)
diff --git a/src/modules/m_spanningtree/treesocket.h b/src/modules/m_spanningtree/treesocket.h
index 7214123e4..d0c497cf9 100644
--- a/src/modules/m_spanningtree/treesocket.h
+++ b/src/modules/m_spanningtree/treesocket.h
@@ -155,6 +155,13 @@ class TreeSocket : public BufferedSocket
 	 */
 	std::shared_ptr<Link> AuthRemote(const CommandBase::Params& params);
 
+	/** Convenience function: read a line from the socket
+	 * @param line The line read
+	 * @param delim The line delimiter
+	 * @return true if a line was read
+	 */
+	bool GetNextLine(std::string& line, char delim = '\n');
+
  public:
 	const time_t age;
 
diff --git a/src/modules/m_spanningtree/treesocket1.cpp b/src/modules/m_spanningtree/treesocket1.cpp
index 64dd3d2b8..8cc699d09 100644
--- a/src/modules/m_spanningtree/treesocket1.cpp
+++ b/src/modules/m_spanningtree/treesocket1.cpp
@@ -197,6 +197,16 @@ CmdResult CommandSQuit::HandleServer(TreeServer* server, CommandBase::Params& pa
 	return ret;
 }
 
+bool TreeSocket::GetNextLine(std::string& line, char delim)
+{
+	std::string::size_type i = recvq.find(delim);
+	if (i == std::string::npos)
+		return false;
+	line.assign(recvq, 0, i);
+	recvq.erase(0, i + 1);
+	return true;
+}
+
 /** This function is called when we receive data from a remote
  * server.
  */