diff --git a/wayland/Makefile b/wayland/Makefile
index 343e7c1da8d..a814fd5d3d5 100644
--- a/wayland/Makefile
+++ b/wayland/Makefile
@@ -21,6 +21,7 @@
      SUBDIR += niri
      SUBDIR += plasma-wayland-protocols
      SUBDIR += regreet
+     SUBDIR += river
      SUBDIR += scenefx
      SUBDIR += slurp
      SUBDIR += sway