diff --git a/src/libsodium/randombytes/sysrandom/randombytes_sysrandom.c b/src/libsodium/randombytes/sysrandom/randombytes_sysrandom.c
index def65f2e..e78e52eb 100644
--- a/src/libsodium/randombytes/sysrandom/randombytes_sysrandom.c
+++ b/src/libsodium/randombytes/sysrandom/randombytes_sysrandom.c
@@ -25,6 +25,7 @@
 #endif
 
 #include "core.h"
+#include "private/common.h"
 #include "randombytes.h"
 #include "randombytes_sysrandom.h"
 #include "utils.h"