Having an external corpus command makes it a special case
diff --git a/files.c b/files.c
index 661e748..d45b057 100644
--- a/files.c
+++ b/files.c
@@ -211,7 +211,7 @@
 {
     hfuzz->files = util_Malloc(sizeof(char *));
     hfuzz->files[0] = "NONE";
-    hfuzz->fileCnt = 0;
+    hfuzz->fileCnt = 1;
 
     if (hfuzz->externalCommand) {
         LOG_I