diff --git a/src/txdb.cpp b/src/txdb.cpp
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -14,6 +14,8 @@
 #include <uint256.h>
 #include <util.h>
 
+#include <boost/thread.hpp>
+
 #include <cstdint>
 
 static const char DB_COIN = 'C';
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -46,6 +46,7 @@
 
 #include <boost/algorithm/string/join.hpp>
 #include <boost/algorithm/string/replace.hpp>
+#include <boost/thread.hpp>
 
 #include <atomic>
 #include <future>
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -13,6 +13,7 @@
 #include <utilstrencodings.h>
 #include <wallet/walletutil.h>
 
+#include <boost/thread.hpp>
 #include <boost/version.hpp>
 
 #include <cstdint>