1 files changed, 2 insertions, 0 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 3856edbef9..fbde845f47 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -21994,8 +21994,10 @@ repeat:
 
   if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') {
     // vim_strsave_shellescape() needs a NUL terminated string.
+    c = (*fnamep)[*fnamelen];
     (*fnamep)[*fnamelen] = NUL;
     p = vim_strsave_shellescape(*fnamep, false, false);
+    (*fnamep)[*fnamelen] = c;
     xfree(*bufp);
     *bufp = *fnamep = p;
     *fnamelen = STRLEN(p);