diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index f967e6e..36a7386 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -3457,7 +3457,8 @@
 	char_u *pskip = skip_option_env_lead(eap->cmd);
 
 	if (vim_strchr((char_u *)"{('[\"@&$", *p) != NULL
-	       || ((p = to_name_const_end(pskip)) > eap->cmd && *p != NUL))
+	       || ((p = to_name_const_end(pskip)) > eap->cmd && *p != NUL)
+	       || (p[0] == '0' && p[1] == 'z'))
 	{
 	    int	    oplen;
 	    int	    heredoc;
@@ -3503,6 +3504,8 @@
 			    // "'string'->func()" is an expression.
 			 || *eap->cmd == '\''
 			    // '"string"->func()' is an expression.
+			 || (eap->cmd[0] == '0' && eap->cmd[1] == 'z')
+			    // '"string"->func()' is an expression.
 			 || *eap->cmd == '"'
 			    // "g:varname" is an expression.
 			 || eap->cmd[1] == ':'