diff --git a/src/common/pico_util/include/pico/util/queue.h b/src/common/pico_util/include/pico/util/queue.h
index 8281d8b06..53a4f5b45 100644
--- a/src/common/pico_util/include/pico/util/queue.h
+++ b/src/common/pico_util/include/pico/util/queue.h
@@ -10,6 +10,10 @@
 #include "pico.h"
 #include "hardware/sync.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** \file queue.h
  * \defgroup queue queue
  * Multi-core and IRQ safe queue implementation.
@@ -181,4 +185,8 @@ void queue_remove_blocking(queue_t *q, void *data);
  */
 void queue_peek_blocking(queue_t *q, void *data);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif