diff --git a/lokimq/proxy.cpp b/lokimq/proxy.cpp
index 8c9ecb3..034a9e9 100644
--- a/lokimq/proxy.cpp
+++ b/lokimq/proxy.cpp
@@ -2,6 +2,13 @@
 #include "lokimq-internal.h"
 #include "hex.h"
 
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+extern "C" {
+#include <pthread.h>
+#include <pthread_np.h>
+}
+#endif
+
 #ifndef _WIN32
 extern "C" {
 #include <sys/stat.h>
diff --git a/lokimq/worker.cpp b/lokimq/worker.cpp
index 68e860e..019013d 100644
--- a/lokimq/worker.cpp
+++ b/lokimq/worker.cpp
@@ -2,6 +2,13 @@
 #include "batch.h"
 #include "lokimq-internal.h"
 
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+extern "C" {
+#include <pthread.h>
+#include <pthread_np.h>
+}
+#endif
+
 namespace lokimq {
 
 namespace {