diff --git a/src/ocf_io.c b/src/ocf_io.c
index 69f1bde..512fed6 100644
--- a/src/ocf_io.c
+++ b/src/ocf_io.c
@@ -78,11 +78,6 @@ ocf_io_allocator_type_t ocf_io_allocator_get_type_default(void)
  * IO internal API
  */
 
-static struct ocf_io_internal *ocf_io_get_internal(struct ocf_io* io)
-{
-	return container_of(io, struct ocf_io_internal, io);
-}
-
 struct ocf_io *ocf_io_new(ocf_volume_t volume, ocf_queue_t queue,
 		uint64_t addr, uint32_t bytes, uint32_t dir,
 		uint32_t io_class, uint64_t flags)
diff --git a/src/ocf_io_priv.h b/src/ocf_io_priv.h
index 53c9230..4b2fffa 100644
--- a/src/ocf_io_priv.h
+++ b/src/ocf_io_priv.h
@@ -22,6 +22,11 @@ struct ocf_io_internal {
 	struct ocf_io io;
 };
 
+static inline struct ocf_io_internal *ocf_io_get_internal(struct ocf_io* io)
+{
+	return container_of(io, struct ocf_io_internal, io);
+}
+
 int ocf_io_allocator_init(ocf_io_allocator_t allocator, ocf_io_allocator_type_t type,
 		uint32_t priv_size, const char *name);