1 files changed, 2 insertions, 1 deletions
diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index eb8c89c36e..13b31ab30f 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -10,6 +10,7 @@
 #include "nvim/ascii_defs.h"
 #include "nvim/assert_defs.h"
 #include "nvim/charset.h"
+#include "nvim/errors.h"
 #include "nvim/eval.h"
 #include "nvim/eval/encode.h"
 #include "nvim/eval/executor.h"
@@ -1823,7 +1824,7 @@ char *callback_to_string(Callback *cb, Arena *arena)
     snprintf(msg, msglen, "<vim partial: %s>", cb->data.partial->pt_name);
     break;
   default:
-    *msg = '\0';
+    *msg = NUL;
     break;
   }
   return msg;