diff --git a/include/libcamera/internal/dma_buf_allocator.h b/include/libcamera/internal/dma_buf_allocator.h
index 13600915..c22b9bbd 100644
--- a/include/libcamera/internal/dma_buf_allocator.h
+++ b/include/libcamera/internal/dma_buf_allocator.h
@@ -11,6 +11,7 @@
 #include <stdint.h>
 #include <string>
 #include <vector>
+#include <cstdint>
 
 #include <libcamera/base/flags.h>
 #include <libcamera/base/shared_fd.h>