diff --git a/controller/RethinkDB.cpp b/controller/RethinkDB.cpp
index bea941fa7..d1012167d 100644
--- a/controller/RethinkDB.cpp
+++ b/controller/RethinkDB.cpp
@@ -253,7 +253,7 @@ RethinkDB::~RethinkDB()
 	_heartbeatThread.join();
 }
 
-void RethinkDB::waitForReady() const
+void RethinkDB::waitForReady()
 {
 	while (_ready > 0) {
 		if (!_waitNoticePrinted) {
diff --git a/controller/RethinkDB.hpp b/controller/RethinkDB.hpp
index c2050ab1b..2309a25cf 100644
--- a/controller/RethinkDB.hpp
+++ b/controller/RethinkDB.hpp
@@ -34,7 +34,7 @@ public:
 	RethinkDB(EmbeddedNetworkController *const nc,const Address &myAddress,const char *path);
 	virtual ~RethinkDB();
 
-	virtual void waitForReady() const;
+	virtual void waitForReady();
 
 	virtual void save(const nlohmann::json &record);