diff --git a/src/file_analysis/analyzer/x509/X509.h b/src/file_analysis/analyzer/x509/X509.h
index 1e7cd05a62..8cf74fc4c6 100644
--- a/src/file_analysis/analyzer/x509/X509.h
+++ b/src/file_analysis/analyzer/x509/X509.h
@@ -8,13 +8,13 @@
 #include "Val.h"
 #include "X509Common.h"
 
-#if (OPENSSL_VERSION_NUMBER < 0x10002000L)
+#if (OPENSSL_VERSION_NUMBER < 0x10002000L || LIBRESSL_VERSION_NUMBER)
 
 #define X509_get_signature_nid(x) OBJ_obj2nid((x)->sig_alg->algorithm)
 
 #endif
 
-#if (OPENSSL_VERSION_NUMBER < 0x1010000fL)
+#if (OPENSSL_VERSION_NUMBER < 0x1010000fL || LIBRESSL_VERSION_NUMBER)
 
 #define X509_OBJECT_new()   (X509_OBJECT*)malloc(sizeof(X509_OBJECT))
 #define X509_OBJECT_free(a) free(a)
diff --git a/src/file_analysis/analyzer/x509/functions.bif b/src/file_analysis/analyzer/x509/functions.bif
index 6fdb695ce8..18f56758f5 100644
--- a/src/file_analysis/analyzer/x509/functions.bif
+++ b/src/file_analysis/analyzer/x509/functions.bif
@@ -668,7 +668,7 @@ function sct_verify%(cert: opaque of x509, logid: string, log_key: string, signa
 	uint32 cert_length;
 	if ( precert )
 		{
-#if (OPENSSL_VERSION_NUMBER < 0x10002000L)
+#if (OPENSSL_VERSION_NUMBER < 0x10002000L || LIBRESSL_VERSION_NUMBER)
 		x->cert_info->enc.modified = 1;
 		cert_length = i2d_X509_CINF(x->cert_info, &cert_out);
 #else