diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 86656297f1..06f9b6c217 100644
--- a/include/monitor/monitor.h
+++ b/include/monitor/monitor.h
@@ -39,11 +39,11 @@ void monitor_read_command(Monitor *mon, int show_prompt);
 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
                           void *opaque);
 
-AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
+AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int fdset_id,
                                 bool has_opaque, const char *opaque,
                                 Error **errp);
-int monitor_fdset_get_fd(int64_t fdset_id, int flags);
-int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd);
+int monitor_fdset_get_fd(int fdset_id, int flags);
+int monitor_fdset_dup_fd_add(int fdset_id, int dup_fd);
 void monitor_fdset_dup_fd_remove(int dup_fd);
 int monitor_fdset_dup_fd_find(int dup_fd);
 
diff --git a/monitor.c b/monitor.c
index bb48997913..b71ce816bc 100644
--- a/monitor.c
+++ b/monitor.c
@@ -160,7 +160,7 @@ struct MonFdsetFd {
 /* file descriptor set containing fds passed via SCM_RIGHTS */
 typedef struct MonFdset MonFdset;
 struct MonFdset {
-    int64_t id;
+    int id;
     QLIST_HEAD(, MonFdsetFd) fds;
     QLIST_HEAD(, MonFdsetFd) dup_fds;
     QLIST_ENTRY(MonFdset) next;
@@ -2346,7 +2346,7 @@ static void monitor_fdsets_cleanup(void)
     qemu_mutex_unlock(&mon_fdsets_lock);
 }
 
-AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
+AddfdInfo *qmp_add_fd(bool has_fdset_id, int32_t fdset_id, bool has_opaque,
                       const char *opaque, Error **errp)
 {
     int fd;
@@ -2372,7 +2372,7 @@ error:
     return NULL;
 }
 
-void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
+void qmp_remove_fd(int32_t fdset_id, bool has_fd, int fd, Error **errp)
 {
     MonFdset *mon_fdset;
     MonFdsetFd *mon_fdset_fd;
@@ -2405,10 +2405,10 @@ void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
 error:
     qemu_mutex_unlock(&mon_fdsets_lock);
     if (has_fd) {
-        snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
+        snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId32 ", fd:%" PRId32,
                  fdset_id, fd);
     } else {
-        snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
+        snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId32, fdset_id);
     }
     error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
 }
@@ -2454,7 +2454,7 @@ FdsetInfoList *qmp_query_fdsets(Error **errp)
     return fdset_list;
 }
 
-AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
+AddfdInfo *monitor_fdset_add_fd(int32_t fd, bool has_fdset_id, int32_t fdset_id,
                                 bool has_opaque, const char *opaque,
                                 Error **errp)
 {
@@ -2476,7 +2476,7 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
     }
 
     if (mon_fdset == NULL) {
-        int64_t fdset_id_prev = -1;
+        int fdset_id_prev = -1;
         MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
 
         if (has_fdset_id) {
@@ -2538,7 +2538,7 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
     return fdinfo;
 }
 
-int monitor_fdset_get_fd(int64_t fdset_id, int flags)
+int monitor_fdset_get_fd(int fdset_id, int flags)
 {
 #ifdef _WIN32
     return -ENOENT;
@@ -2576,7 +2576,7 @@ out:
 #endif
 }
 
-int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
+int monitor_fdset_dup_fd_add(int fdset_id, int dup_fd)
 {
     MonFdset *mon_fdset;
     MonFdsetFd *mon_fdset_fd_dup;
diff --git a/qapi/misc.json b/qapi/misc.json
index 8b3ca4fdd3..b345e1458b 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -2179,7 +2179,7 @@
 #
 # Since: 1.2.0
 ##
-{ 'struct': 'AddfdInfo', 'data': {'fdset-id': 'int', 'fd': 'int'} }
+{ 'struct': 'AddfdInfo', 'data': {'fdset-id': 'int32', 'fd': 'int32'} }
 
 ##
 # @add-fd:
@@ -2209,7 +2209,7 @@
 #
 ##
 { 'command': 'add-fd',
-  'data': { '*fdset-id': 'int',
+  'data': { '*fdset-id': 'int32',
             '*opaque': 'str' },
   'returns': 'AddfdInfo' }
 
@@ -2238,7 +2238,7 @@
 # <- { "return": {} }
 #
 ##
-{ 'command': 'remove-fd', 'data': {'fdset-id': 'int', '*fd': 'int'} }
+{ 'command': 'remove-fd', 'data': {'fdset-id': 'int32', '*fd': 'int32'} }
 
 ##
 # @FdsetFdInfo:
@@ -2252,7 +2252,7 @@
 # Since: 1.2.0
 ##
 { 'struct': 'FdsetFdInfo',
-  'data': {'fd': 'int', '*opaque': 'str'} }
+  'data': {'fd': 'int32', '*opaque': 'str'} }
 
 ##
 # @FdsetInfo:
@@ -2266,7 +2266,7 @@
 # Since: 1.2.0
 ##
 { 'struct': 'FdsetInfo',
-  'data': {'fdset-id': 'int', 'fds': ['FdsetFdInfo']} }
+  'data': {'fdset-id': 'int32', 'fds': ['FdsetFdInfo']} }
 
 ##
 # @query-fdsets:
diff --git a/stubs/fdset.c b/stubs/fdset.c
index 4f3edf2ea4..1504624c19 100644
--- a/stubs/fdset.c
+++ b/stubs/fdset.c
@@ -2,7 +2,7 @@
 #include "qemu-common.h"
 #include "monitor/monitor.h"
 
-int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
+int monitor_fdset_dup_fd_add(int fdset_id, int dup_fd)
 {
     return -1;
 }
@@ -12,7 +12,7 @@ int monitor_fdset_dup_fd_find(int dup_fd)
     return -1;
 }
 
-int monitor_fdset_get_fd(int64_t fdset_id, int flags)
+int monitor_fdset_get_fd(int fdset_id, int flags)
 {
     return -ENOENT;
 }
diff --git a/util/osdep.c b/util/osdep.c
index 3f04326040..9e2d3768e0 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -292,7 +292,7 @@ int qemu_open(const char *name, int flags, ...)
 
     /* Attempt dup of fd from fd set */
     if (strstart(name, "/dev/fdset/", &fdset_id_str)) {
-        int64_t fdset_id;
+        int fdset_id;
         int fd, dupfd;
 
         fdset_id = qemu_parse_fdset(fdset_id_str);
@@ -352,7 +352,7 @@ int qemu_open(const char *name, int flags, ...)
 
 int qemu_close(int fd)
 {
-    int64_t fdset_id;
+    int fdset_id;
 
     /* Close fd that was dup'd from an fdset */
     fdset_id = monitor_fdset_dup_fd_find(fd);
diff --git a/vl.c b/vl.c
index b6709514c1..0f5622496c 100644
--- a/vl.c
+++ b/vl.c
@@ -1081,7 +1081,7 @@ bool defaults_enabled(void)
 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
 {
     int fd, dupfd, flags;
-    int64_t fdset_id;
+    int fdset_id;
     const char *fd_opaque = NULL;
     AddfdInfo *fdinfo;
 
