diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 7c2fe3deb..65f4221f0 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -3431,7 +3431,7 @@ skip_option_env_lead(char_u *start)
     static int
 one_letter_cmd(char_u *p, cmdidx_T *idx)
 {
-    if (!in_vim9script())
+    if (in_vim9script())
 	return FALSE;
     if (*p == 'k')
     {
diff --git a/src/version.c b/src/version.c
index 693cebc06..6405e3b85 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4620,
 /**/
     4619,
 /**/