diff --git a/ka/doskrnl.k b/ka/doskrnl.k
index 19290a8..dd23311 100644
--- a/ka/doskrnl.k
+++ b/ka/doskrnl.k
@@ -10,8 +10,8 @@ start:
 
     call main
 
-    ;call CMD.builtins.dir
-    ;hlt
+    call CMD.builtins.dir
+    hlt
 
     ; Wait for and print input indefinitely
 .1:
diff --git a/ka/usr/cmd/dir.k b/ka/usr/cmd/dir.k
index 0220f25..543a61d 100644
--- a/ka/usr/cmd/dir.k
+++ b/ka/usr/cmd/dir.k
@@ -3,7 +3,7 @@ NAME_MAX := 256
 CMD.builtins.dir:
     push nx0
 
-    sub nx0, nx0        # no. of files found
+    xor nx0, nx0        # no. of files found
 
     mov rcx, STRLEN_MAX
     mov rdx, .dirmsg