1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libmp/mp.h b/lib/libmp/mp.h
index 056c6ba..4c2c94d 100644
--- a/lib/libmp/mp.h
+++ b/lib/libmp/mp.h
@@ -3,7 +3,9 @@
 #ifndef _MP_H_
 #define _MP_H_
 
+#ifndef HEADER_BN_H_
 #include <openssl/bn.h>
+#endif
 
 typedef struct _mint {
 	BIGNUM *bn;