Index: src/hashtable_seed.c
--- src/hashtable_seed.c.orig
+++ src/hashtable_seed.c
@@ -44,6 +44,11 @@
 
 #include "jansson.h"
 
+#if defined(__OpenBSD__)
+static uint32_t generate_seed() {
+    return arc4random();
+}
+#else
 static uint32_t buf_to_uint32(char *data) {
     size_t i;
     uint32_t result = 0;
@@ -190,6 +195,7 @@ static uint32_t generate_seed() {
 
     return seed;
 }
+#endif /* OpenBSD */
 
 volatile uint32_t hashtable_seed = 0;