diff --git a/src/crypto/sha256.cpp b/src/crypto/sha256.cpp
index c99b5697366d..d8ee2659111a 100644
--- a/src/crypto/sha256.cpp
+++ b/src/crypto/sha256.cpp
@@ -2,6 +2,10 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#if defined(HAVE_CONFIG_H)
+#include <config/bitcoin-config.h>
+#endif
+
 #include <crypto/sha256.h>
 #include <crypto/common.h>