diff --git a/NEWS b/NEWS
index 5ed2c127..e9408c52 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,7 @@ What's new in psycopg 2.7.6
 
 - Close named cursors if exist, even if `~cursor.execute()` wasn't called
   (:ticket:`#746`).
+- Fixed building on modern FreeBSD versions with Python 3.7 (:ticket:`#755`)
 
 
 What's new in psycopg 2.7.5
diff --git a/psycopg/config.h b/psycopg/config.h
index a96864f3..780bb97a 100644
--- a/psycopg/config.h
+++ b/psycopg/config.h
@@ -153,6 +153,11 @@ typedef unsigned __int64    uint64_t;
 #include "win32_support.h"
 #endif
 
+/* Use params.h for __FreeBSD_version (only needed from a certain version on) */
+#if defined(__FreeBSD__) && !defined(__FreeBSD_version)
+#include <sys/param.h>
+#endif
+
 /* what's this, we have no round function either? */
 #if (defined(__FreeBSD__) && __FreeBSD_version < 503000) \
     || (defined(_WIN32) && !defined(__GNUC__)) \