1 files changed, 2 insertions, 0 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index f71620a7b4..3856edbef9 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -21993,6 +21993,8 @@ repeat:
   }
 
   if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') {
+    // vim_strsave_shellescape() needs a NUL terminated string.
+    (*fnamep)[*fnamelen] = NUL;
     p = vim_strsave_shellescape(*fnamep, false, false);
     xfree(*bufp);
     *bufp = *fnamep = p;