diff --git a/tests/functional_tests/crypto_tests.cpp b/tests/functional_tests/crypto_tests.cpp
index eaf5a5f3..b70c5390 100644
--- a/tests/functional_tests/crypto_tests.cpp
+++ b/tests/functional_tests/crypto_tests.cpp
@@ -14,6 +14,7 @@
 #include "currency_core/difficulty.h"
 
 #include "crypto/crypto-sugar.h"
+#include "crypto/range_proofs.h"
 
 using namespace crypto;