diff --git a/include/monitor/readline.h b/include/monitor/readline.h
index fc9806ecf1..0faf6e1db7 100644
--- a/include/monitor/readline.h
+++ b/include/monitor/readline.h
@@ -8,7 +8,8 @@
 #define READLINE_MAX_COMPLETIONS 256
 
 typedef void ReadLineFunc(Monitor *mon, const char *str, void *opaque);
-typedef void ReadLineCompletionFunc(const char *cmdline);
+typedef void ReadLineCompletionFunc(Monitor *mon,
+                                    const char *cmdline);
 
 typedef struct ReadLineState {
     char cmd_buf[READLINE_CMD_BUF_SIZE + 1];
diff --git a/monitor.c b/monitor.c
index d01aa622d3..b8f79a5dfa 100644
--- a/monitor.c
+++ b/monitor.c
@@ -4141,20 +4141,20 @@ static const char *next_arg_type(const char *typestr)
     return (p != NULL ? ++p : typestr);
 }
 
-static void monitor_find_completion(const char *cmdline)
+static void monitor_find_completion(Monitor *mon,
+                                    const char *cmdline)
 {
     const char *cmdname;
     char *args[MAX_ARGS];
     int nb_args, i, len;
     const char *ptype, *str;
     const mon_cmd_t *cmd;
-    Monitor *mon = cur_mon;
     MonitorBlockComplete mbs;
 
     parse_cmdline(cmdline, &nb_args, args);
 #ifdef DEBUG_COMPLETION
-    for(i = 0; i < nb_args; i++) {
-        monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
+    for (i = 0; i < nb_args; i++) {
+        monitor_printf(mon, "arg%d = '%s'\n", i, args[i]);
     }
 #endif
 
@@ -4173,7 +4173,7 @@ static void monitor_find_completion(const char *cmdline)
             cmdname = "";
         else
             cmdname = args[0];
-        readline_set_completion_index(cur_mon->rs, strlen(cmdname));
+        readline_set_completion_index(mon->rs, strlen(cmdname));
         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
             cmd_completion(mon, cmdname, cmd->name);
         }
@@ -4203,7 +4203,7 @@ static void monitor_find_completion(const char *cmdline)
         switch(*ptype) {
         case 'F':
             /* file completion */
-            readline_set_completion_index(cur_mon->rs, strlen(str));
+            readline_set_completion_index(mon->rs, strlen(str));
             file_completion(mon, str);
             break;
         case 'B':
@@ -4216,7 +4216,7 @@ static void monitor_find_completion(const char *cmdline)
         case 's':
             /* XXX: more generic ? */
             if (!strcmp(cmd->name, "info")) {
-                readline_set_completion_index(cur_mon->rs, strlen(str));
+                readline_set_completion_index(mon->rs, strlen(str));
                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
                     cmd_completion(mon, str, cmd->name);
                 }
@@ -4224,12 +4224,12 @@ static void monitor_find_completion(const char *cmdline)
                 char *sep = strrchr(str, '-');
                 if (sep)
                     str = sep + 1;
-                readline_set_completion_index(cur_mon->rs, strlen(str));
+                readline_set_completion_index(mon->rs, strlen(str));
                 for (i = 0; i < Q_KEY_CODE_MAX; i++) {
                     cmd_completion(mon, str, QKeyCode_lookup[i]);
                 }
             } else if (!strcmp(cmd->name, "help|?")) {
-                readline_set_completion_index(cur_mon->rs, strlen(str));
+                readline_set_completion_index(mon->rs, strlen(str));
                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
                     cmd_completion(mon, str, cmd->name);
                 }
diff --git a/readline.c b/readline.c
index 1c0f7ee26b..c91b324cb1 100644
--- a/readline.c
+++ b/readline.c
@@ -285,7 +285,7 @@ static void readline_completion(ReadLineState *rs)
     cmdline = g_malloc(rs->cmd_buf_index + 1);
     memcpy(cmdline, rs->cmd_buf, rs->cmd_buf_index);
     cmdline[rs->cmd_buf_index] = '\0';
-    rs->completion_finder(cmdline);
+    rs->completion_finder(rs->mon, cmdline);
     g_free(cmdline);
 
     /* no completion found */