diff --git a/bam/GenericSamInterface.h b/bam/GenericSamInterface.h
index 583e28e..86a04e7 100644
--- a/bam/GenericSamInterface.h
+++ b/bam/GenericSamInterface.h
@@ -25,6 +25,7 @@
 #include <htslib/sam.h>
 #include <htslib/cram.h>
 
+#include <cstdint>
 
 
 class GenericSamInterface