diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index 92b834c..47b6f77 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -1217,7 +1217,7 @@
   :2put =['a', 'b', 'c']
   assert_equal(['ppp', 'a', 'b', 'c', 'above'], getline(2, 6))
 
-  :0put ='first'
+  :0put =  'first'
   assert_equal('first', getline(1))
   :1put! ='first again'
   assert_equal('first again', getline(1))
diff --git a/src/version.c b/src/version.c
index 13f5da3..acc5ccf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4552,
+/**/
     4551,
 /**/
     4550,
diff --git a/src/vim9cmds.c b/src/vim9cmds.c
index 5a44644..b8a511f 100644
--- a/src/vim9cmds.c
+++ b/src/vim9cmds.c
@@ -1767,7 +1767,7 @@
 
     if (eap->regname == '=')
     {
-	char_u *p = line + 1;
+	char_u *p = skipwhite(line + 1);
 
 	if (compile_expr0(&p, cctx) == FAIL)
 	    return NULL;