diff --git a/src/eval.c b/src/eval.c
index 6b12a97..1ad6339 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -3130,7 +3130,7 @@
 	 */
 	if (evaluate && in_vim9script() && !IS_WHITE_OR_NUL((*arg)[1]))
 	{
-	    error_white_both(p, 1);
+	    error_white_both(*arg, 1);
 	    clear_tv(rettv);
 	    return FAIL;
 	}
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 26a6932..a55de7e 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1254,6 +1254,17 @@
       echo 'a' .. function('len')
   END
   CheckScriptFailure(lines, 'E729:', 2)
+
+  lines =<< trim END
+      vim9script
+      new
+      ['']->setline(1)
+      /pattern
+
+      eval 0
+      bwipe!
+  END
+  CheckScriptFailure(lines, "E1004: White space required before and after '/' at \"/pattern")
 enddef
 
 def Test_expr5_vim9script_channel()
diff --git a/src/version.c b/src/version.c
index 4036e2e..093f23d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2573,
+/**/
     2572,
 /**/
     2571,