diff --git a/include/flamegpu/visualiser/color/DiscreteColor.h b/include/flamegpu/visualiser/color/DiscreteColor.h
index b72b753d1..1775f1d4e 100644
--- a/include/flamegpu/visualiser/color/DiscreteColor.h
+++ b/include/flamegpu/visualiser/color/DiscreteColor.h
@@ -3,6 +3,7 @@
 
 #include <map>
 #include <string>
+#include <cstdint>
 
 #include <sstream>