diff --git a/core/libdivecomputer.c b/core/libdivecomputer.c
index 9a5b30087..51fc6f8b8 100644
--- a/core/libdivecomputer.c
+++ b/core/libdivecomputer.c
@@ -1342,6 +1342,12 @@ dc_status_t divecomputer_device_open(device_data_t *data)
 			return rc;
 	}
 
+	if (transports & DC_TRANSPORT_USBSTORAGE) {
+		rc = dc_usb_storage_open(&data->iostream, context, data->devname);
+		if (rc == DC_STATUS_SUCCESS)
+			return rc;
+	}
+
 	return DC_STATUS_UNSUPPORTED;
 }
 
diff --git a/core/libdivecomputer.h b/core/libdivecomputer.h
index 050834195..e1964eb9a 100644
--- a/core/libdivecomputer.h
+++ b/core/libdivecomputer.h
@@ -15,6 +15,7 @@
 // Even if we have an old libdivecomputer, Uemis uses this
 #ifndef DC_TRANSPORT_USBSTORAGE
 #define DC_TRANSPORT_USBSTORAGE (1 << 6)
+#define dc_usb_storage_open(stream, context, devname) (DC_STATUS_UNSUPPORTED)
 #endif
 
 #include "dive.h"