diff --git a/src/afl-cc.c b/src/afl-cc.c
index ec25bf9d..ccbb4f8d 100644
--- a/src/afl-cc.c
+++ b/src/afl-cc.c
@@ -1572,6 +1572,8 @@ void add_defs_fortify(aflcc_state_t *aflcc, u8 action) {
       break;
 
   }
+  
+  aflcc->have_fortify = 1;
 
 }