diff --git a/panorama/panorama.h b/panorama/panorama.h
index ad4d49b..5edc57b 100644
--- a/panorama/panorama.h
+++ b/panorama/panorama.h
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <vector>
+#include <cstdint>
 
 struct PanoramaImage
 {