1 files changed, 1 insertions, 0 deletions
diff --git a/src/core_io.h b/src/core_io.h
index 8a7d580570..26a1293dfd 100644
--- a/src/core_io.h
+++ b/src/core_io.h
@@ -2,6 +2,7 @@
 #define __BITCOIN_CORE_IO_H__
 
 #include <string>
+#include <vector>
 
 class uint256;
 class CScript;