diff --git a/src/glk/pointcloud_buffer.cpp b/src/glk/pointcloud_buffer.cpp
index 3ca4f5ee..03efea39 100644
--- a/src/glk/pointcloud_buffer.cpp
+++ b/src/glk/pointcloud_buffer.cpp
@@ -3,6 +3,7 @@
 #include <random>
 #include <numeric>
 #include <iostream>
+#include <cassert>
 #include <glk/colormap.hpp>
 #include <glk/console_colors.hpp>
 #include <glk/type_conversion.hpp>