diff --git a/include/scsi-lowlevel.h b/include/scsi-lowlevel.h
index e10620d..16fe68c 100644
--- a/include/scsi-lowlevel.h
+++ b/include/scsi-lowlevel.h
@@ -23,6 +23,7 @@
 #define EXTERN
 #endif
 
+#include <assert.h>
 #include <stdint.h>
 #include <sys/types.h>