2 files changed, 12 insertions, 2 deletions
diff --git a/src/crypto/crypto.cpp b/src/crypto/crypto.cpp
index bce3b1131..fa0199f20 100644
--- a/src/crypto/crypto.cpp
+++ b/src/crypto/crypto.cpp
@@ -28,7 +28,6 @@
 // 
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
-#include <alloca.h>
 #include <cassert>
 #include <cstddef>
 #include <cstdint>
@@ -42,6 +41,12 @@
 #include "crypto.h"
 #include "hash.h"
 
+#ifndef __FreeBSD__
+ #include <alloca.h>
+#else
+ #include <stdlib.h>
+#endif
+
 namespace crypto {
 
   using std::abort;
diff --git a/src/crypto/tree-hash.c b/src/crypto/tree-hash.c
index 573f44643..5a84c8688 100644
--- a/src/crypto/tree-hash.c
+++ b/src/crypto/tree-hash.c
@@ -28,13 +28,18 @@
 // 
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
-#include <alloca.h>
 #include <assert.h>
 #include <stddef.h>
 #include <string.h>
 
 #include "hash-ops.h"
 
+#ifndef __FreeBSD__
+ #include <alloca.h>
+#else
+ #include <stdlib.h>
+#endif
+
 /// Quick check if this is power of two (use on unsigned types; in this case for size_t only)
 bool ispowerof2_size_t(size_t x) {
 	return x && !(x & (x - 1));