diff --git a/libraries/ZWidget/src/core/picopng/picopng.cpp b/libraries/ZWidget/src/core/picopng/picopng.cpp
index c2943eb14..97eb3b500 100644
--- a/libraries/ZWidget/src/core/picopng/picopng.cpp
+++ b/libraries/ZWidget/src/core/picopng/picopng.cpp
@@ -1,4 +1,6 @@
 #include <vector>
+#include <cstddef>
+#include <cstdint>
 
 /*
 decodePNG: The picoPNG function, decodes a PNG file buffer in memory, into a raw pixel buffer.