diff --git a/NmapOutputTable.h b/NmapOutputTable.h
index ec6d6918d..0244bb97e 100644
--- a/NmapOutputTable.h
+++ b/NmapOutputTable.h
@@ -128,9 +128,10 @@
 
 /* Keep assert() defined for security reasons */
 #undef NDEBUG
-
 #include <assert.h>
 
+#include "nbase.h" /* __attribute__ */
+
 /**********************  DEFINES/ENUMS ***********************************/
 
 /**********************  STRUCTURES  ***********************************/